{"product_id":"pleco-for-sale-uk-catfish-buy-online-l187b","title":"Chaetostoma thomsoni L187b - Pleco for Sale UK","description":"\u003cp\u003eIf you are searching for a \u003cstrong\u003epleco for sale UK\u003c\/strong\u003e aquarists can keep in a cooler, high-oxygen freshwater setup, \u003cem\u003eChaetostoma thomsoni\u003c\/em\u003e L187B is one of the most rewarding choices available. Often sold as the \u003cstrong\u003eBanded Rubbernose Catfish\u003c\/strong\u003e, this compact loricariid comes from fast-flowing Colombian streams and stays far more manageable than many common plecs. Adult fish usually reach around 12 cm, making this an excellent \u003cstrong\u003eaquarium pleco UK\u003c\/strong\u003e option for hobbyists who want a specialist algae grazer without committing to a giant tankbuster. With a peaceful temperament, an expected lifespan of up to 8 years, and a moderate care level, it suits fishkeepers who can provide strong flow, cool clean water, and a mature biofilm-rich environment.\u003c\/p\u003e\u003cp\u003eWhat makes this species special is not just its unusual flattened body and banded pattern, but how well it fits a river-style community. It is often considered among the \u003cstrong\u003ebest catfish for freshwater aquarium\u003c\/strong\u003e keepers who value behaviour as much as appearance. Unlike a generic common plec, this species is a true specialist with clear \u003cstrong\u003epleco aquarium requirements\u003c\/strong\u003e, specific \u003cstrong\u003epleco temperature requirements\u003c\/strong\u003e, and a strong preference for current. See our detailed photos showing the broad head, sucker mouth, and textured armour plates in the product image \u003cstrong\u003epleco-for-sale-uk.webp\u003c\/strong\u003e. For aquarists wanting a \u003cstrong\u003epleco for planted tank\u003c\/strong\u003e layouts with cool, oxygen-rich water, or a carefully chosen \u003cstrong\u003epleco for small aquarium\u003c\/strong\u003e compared with larger species, L187B offers character, algae-grazing behaviour, and standout South American charm.\u003c\/p\u003e\u003cdiv class=\"info-box\"\u003e\n\u003ch4\u003e🔹 Quick Facts\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eScientific Name:\u003c\/strong\u003e \u003cem\u003eChaetostoma thomsoni\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCare Level:\u003c\/strong\u003e Moderate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMin Tank Size:\u003c\/strong\u003e 100 litres (22 gallons)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e 22-26°C (72-79°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH Range:\u003c\/strong\u003e 6.0-7.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifespan:\u003c\/strong\u003e Up to 8 years\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperament:\u003c\/strong\u003e Peaceful\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiet:\u003c\/strong\u003e Herbivore\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"species-profile\"\u003e\n\u003ch3\u003eClassification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrder:\u003c\/strong\u003e Siluriformes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFamily:\u003c\/strong\u003e Loricariidae\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenus:\u003c\/strong\u003e \u003cem\u003eChaetostoma\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eChaetostoma thomsoni\u003c\/em\u003e belongs to the armoured catfish family, a group prized in the aquarium hobby for algae-grazing ability, distinctive body armour, and specialised mouths adapted for clinging to rock in current. Within Loricariidae, Chaetostoma species are known as rubbernose or bulldog-type plecs and are especially valued by aquarists who want a riverine pleco habitat rather than a warm, still-water setup. L-number fish such as L187B remain popular because they help hobbyists identify closely related plecos that may not be widely traded under one stable common name.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"origin\"\u003eWhere Do Chaetostoma thomsoni L187B Come From? Natural Habitat Explained\u003c\/h2\u003e\u003cp\u003e\u003cem\u003eChaetostoma thomsoni\u003c\/em\u003e originates from South America, with Colombia given as the core origin for this form. In the wild, these fish inhabit clear, cool streams and river margins with a steady to strong current, rocky surfaces, and very high dissolved oxygen. That habitat tells you almost everything you need to know about successful care. This is not a swamp pleco and not an \u003cstrong\u003ealgae eater fish for a pond\u003c\/strong\u003e; it is a stream specialist that thrives when water is moving, clean, and richly oxygenated.\u003c\/p\u003e\u003cp\u003eIn nature, the fish spends much of its time attached to stone, wood, and smooth hard surfaces, rasping biofilm, soft algae, and microscopic plant matter. That is why mature aquariums are so important. A newly set up tank may look clean to us, but it often lacks the microbial film this fish naturally grazes. Hobbyists sometimes ask about \u003cstrong\u003ealgae eating fish for ponds\u003c\/strong\u003e, \u003cstrong\u003ealgae eater fish for ponds uk\u003c\/strong\u003e, or even \u003cstrong\u003ealgae eating fish for an outdoor pond\u003c\/strong\u003e. This species is not suitable for that role. It is a tropical to subtropical freshwater catfish requiring controlled indoor conditions, not a pond fish and not one of the true \u003cstrong\u003ealgae eater fish for cold water ponds\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eBecause of its stream origin, the ideal setup replicates shallow flowing water over rock and sand. Think rounded stones, shaded retreats, and brisk circulation rather than deep mulm or stagnant corners. It is also why this fish often does better in slightly cooler aquariums than many mainstream plecos. If you have been comparing options such as \u003cstrong\u003ealgae eater fish freshwater pond\u003c\/strong\u003e, \u003cstrong\u003ealgae eater fish in pond\u003c\/strong\u003e, or \u003cstrong\u003ealgae eating fish cold water pond\u003c\/strong\u003e species, L187B belongs firmly in the aquarium category, not the pond category. Customers looking for \u003cstrong\u003ealgae eater fish for koi pond\u003c\/strong\u003e or \u003cstrong\u003ewhere to buy algae eating fish for ponds\u003c\/strong\u003e should choose true pond-suitable species elsewhere, because this Colombian catfish deserves a specialist indoor setup.\u003c\/p\u003e\u003cp\u003eIts natural environment also explains why it is so appealing to enthusiasts: it behaves differently from many common plecs. Rather than hiding all day, healthy specimens often graze openly across rocks and glass, especially in mature tanks with stable water quality. For aquarists who enjoy observing natural feeding behaviour, it is one of the most interesting South American catfish to keep.\u003c\/p\u003e\u003cdiv class=\"tip-box\"\u003e\n\u003ch4\u003e💡 Expert Tip\u003c\/h4\u003e\n\u003cp\u003eMimicking the natural habitat of \u003cem\u003eChaetostoma thomsoni\u003c\/em\u003e with rounded stones, strong current, and high oxygen levels improves colour, feeding response, and long-term health. In our experience, fish settle faster when they can choose between shaded crevices and open grazing surfaces.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"tank-setup\"\u003eHow to Set Up the Perfect Tank for Chaetostoma thomsoni L187B\u003c\/h2\u003e\u003ch3\u003eTank Size Requirements\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eChaetostoma Thomsoni L187B minimum tank size\u003c\/strong\u003e is 100 litres, and that is the true minimum for a single adult or a carefully planned pair. If you want to keep a small group, provide more floor space and more rockwork rather than simply more height. When people search \u003cstrong\u003eChaetostoma Thomsoni L187B tank size\u003c\/strong\u003e, they often assume a fish that reaches 12 cm can live in a tiny tank. In practice, its need for current, oxygen, and grazing area means a longer aquarium works far better than a small cube.\u003c\/p\u003e\u003cp\u003eAlthough some hobbyists search for a \u003cstrong\u003epleco for small aquarium\u003c\/strong\u003e, this species is best described as compact rather than nano-suitable. It can work in a medium community aquarium, but it still needs room for territory, wood or stone surfaces, and strong filtration. For one fish, 100 litres is workable; 120-150 litres gives you more stability and more options for tank mates.\u003c\/p\u003e\u003ch3\u003eWater Parameters\u003c\/h3\u003e\u003cp\u003eThe best \u003cstrong\u003eChaetostoma Thomsoni L187B water parameters\u003c\/strong\u003e are a temperature of 22-26°C, pH 6.0-7.5, and hardness of 4-15 dGH. The ideal \u003cstrong\u003eChaetostoma Thomsoni L187B water temperature\u003c\/strong\u003e sits around 23-25°C for most home aquariums. If you have been researching \u003cstrong\u003epleco temperature requirements\u003c\/strong\u003e, note that this species prefers the cooler end compared with many tropical plecs. The \u003cstrong\u003echaetostoma thomsoni l187b ph level\u003c\/strong\u003e should remain stable rather than chasing an exact number. Consistency matters more than constant adjustment.\u003c\/p\u003e\u003cdiv class=\"spec-grid\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"spec-value\"\u003e22-26°C\u003c\/div\u003e\n\u003cdiv class=\"spec-label\"\u003eTemperature\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"spec-value\"\u003e6.0-7.5\u003c\/div\u003e\n\u003cdiv class=\"spec-label\"\u003epH\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"spec-value\"\u003e4-15 dGH\u003c\/div\u003e\n\u003cdiv class=\"spec-label\"\u003eHardness\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"spec-value\"\u003e100L+\u003c\/div\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum Tank\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cp\u003eThese are the \u003cstrong\u003echaetostoma thomsoni l187b ideal water conditions\u003c\/strong\u003e for long-term success: cool, clean, oxygen-rich water with low nitrate and a mature surface biofilm. If your tank runs warm and still, choose another pleco species. If your setup includes powerheads or strong filter return, this fish becomes much easier to keep.\u003c\/p\u003e\u003ch3\u003eFiltration and Flow\u003c\/h3\u003e\u003cp\u003eA riverine pleco needs excellent filtration. Use a canister filter or oversized internal filter that turns the tank over at least 6-10 times per hour, ideally with additional flow from a small circulation pump. Mechanical filtration keeps debris from settling, while biological filtration supports stable water chemistry. Strong surface agitation is important because this species comes from oxygen-rich water.\u003c\/p\u003e\u003cp\u003eIf you are building a specialist \u003cstrong\u003epleco tank setup\u003c\/strong\u003e, include smooth rocks directly in the current so the fish can graze and rest naturally. Many keepers pair this species with other current-loving fish and create a stream manifold style layout. For hobbyists comparing options in the \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003epleco for sale UK collection\u003c\/a\u003e, this is one of the clearest examples of a species whose environmental needs shape every part of the setup.\u003c\/p\u003e\u003ch3\u003eSubstrate, Plants and Decor\u003c\/h3\u003e\u003cp\u003eUse fine sand or smooth rounded gravel to protect the belly and fins. Add rounded cobbles, slate, and bogwood, but avoid sharp lava rock or jagged décor. A mature coating of aufwuchs and biofilm is more valuable than a spotless sterile look. This species can be a good \u003cstrong\u003epleco for planted tank\u003c\/strong\u003e aquariums if you choose hardy plants attached to wood and stone, such as Anubias, Java fern, and Bucephalandra. It does not have the reputation of uprooting plants like some larger plecs.\u003c\/p\u003e\u003cp\u003eBecause people often compare algae grazers, it is worth clarifying that searches like \u003cstrong\u003esiamese algae eater planted tank\u003c\/strong\u003e, \u003cstrong\u003edo siamese algae eaters eat plants\u003c\/strong\u003e, \u003cstrong\u003edoes siamese algae eater eat plants\u003c\/strong\u003e, and \u003cstrong\u003ewill siamese algae eaters eat plants\u003c\/strong\u003e describe a different fish entirely. L187B is a pleco, not a Siamese algae eater, and in a properly fed setup it is generally plant-safe. For a contrasting pleco option, see the \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eLemon Bristlenose Pleco - Ancistrus Sp.\u003c\/a\u003e or the \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eSuper Red Long Fin Bristlenose Pleco\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eLighting\u003c\/h3\u003e\u003cp\u003eModerate lighting works well. Bright light can encourage algae growth on rock surfaces, which benefits grazing, but provide shaded areas under wood or stones so the fish can retreat. Aim for 7-9 hours of light daily to balance algae growth with plant health. Too much light without nutrient control simply creates nuisance algae and unstable water quality.\u003c\/p\u003e\u003cdiv class=\"info-box\"\u003e\n\u003ch4\u003e🔹 Quick Setup Checklist\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTank size: 100 litres minimum, longer tanks preferred\u003c\/li\u003e\n\u003cli\u003eTemperature: 22-26°C\u003c\/li\u003e\n\u003cli\u003eStrong filtration with visible flow\u003c\/li\u003e\n\u003cli\u003eHigh oxygen and low nitrate\u003c\/li\u003e\n\u003cli\u003eFine sand or smooth gravel\u003c\/li\u003e\n\u003cli\u003eRounded rocks and shaded hiding places\u003c\/li\u003e\n\u003cli\u003eMature tank with biofilm and algae growth\u003c\/li\u003e\n\u003cli\u003ePeaceful tank mates only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"tip-box\"\u003e\n\u003ch4\u003e💡 Pro Tip\u003c\/h4\u003e\n\u003cp\u003eAlways cycle the tank for 4-6 weeks before adding this species. A mature aquarium with established surfaces is far better than a brand-new setup, because newly imported or newly shipped Chaetostoma often graze continuously during the settling-in period.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"feeding\"\u003eWhat Do Chaetostoma thomsoni L187B Eat? Complete Feeding Guide\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eChaetostoma Thomsoni L187B diet\u003c\/strong\u003e is primarily herbivorous, based on algae, biofilm, and vegetable matter, though fish also ingest small microorganisms while grazing. Good \u003cstrong\u003ealgae eater fish care\u003c\/strong\u003e starts with understanding that algae alone is not enough in most home aquariums. Even if customers ask \u003cstrong\u003ewhat are some algae eating fish\u003c\/strong\u003e or \u003cstrong\u003ewhat eats hair algae freshwater\u003c\/strong\u003e, no single fish should be treated as a maintenance tool. This species needs a varied, deliberate feeding plan.\u003c\/p\u003e\u003ch3\u003eStaple Foods\u003c\/h3\u003e\u003cp\u003eThe best staples are spirulina wafers, quality algae wafers, repashy-style gel foods for herbivores, and naturally grown biofilm on stone and wood. A proper \u003cstrong\u003eChaetostoma Thomsoni L187B feeding guide\u003c\/strong\u003e includes daily access to vegetable-based foods, especially if the tank is very clean. Blanched courgette, cucumber, spinach, shelled peas, and green beans are all useful additions.\u003c\/p\u003e\u003cdiv class=\"food-recommendation\"\u003e\n\u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eLemon Bristlenose Pleco - Ancistrus Sp.\u003c\/a\u003e — A helpful comparison species if you are choosing between compact algae-grazing plecos for a vegetable-rich feeding routine.\u003c\/div\u003e\u003cdiv class=\"food-recommendation\"\u003e\n\u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eL226 Iquitos Tiger Pleco - Panaqolus\u003c\/a\u003e — A contrasting wood-grazing pleco for keepers interested in how diet varies across Loricariidae.\u003c\/div\u003e\u003ch3\u003eSupplemental Foods\u003c\/h3\u003e\u003cp\u003eOffer variety two to four times weekly with blanched vegetables and occasional small amounts of high-quality sinking omnivore foods. While searches such as \u003cstrong\u003ewhat do siamese algae eaters eat\u003c\/strong\u003e, \u003cstrong\u003ewhat to feed siamese algae eater\u003c\/strong\u003e, \u003cstrong\u003esiamese algae eater diet\u003c\/strong\u003e, and \u003cstrong\u003ewhat algae do siamese algae eaters eat\u003c\/strong\u003e are common, remember that this fish is not a Siamese algae eater and should not be fed as one. Chaetostoma species usually do best on a more consistent vegetable and biofilm-based menu.\u003c\/p\u003e\u003ch3\u003eTreats and Special Foods\u003c\/h3\u003e\u003cp\u003eTreats can include tiny amounts of frozen daphnia or cyclops, but these should remain occasional. During conditioning for spawning, increase vegetable variety and maintain excellent oxygen levels rather than simply adding protein. If you are wondering \u003cstrong\u003ewhat are chinese algae eaters\u003c\/strong\u003e or \u003cstrong\u003ewhat do chinese algae eaters eat\u003c\/strong\u003e, those are entirely different fish with very different adult behaviour and feeding patterns.\u003c\/p\u003e\u003ch3\u003eFeeding Frequency and Portion Control\u003c\/h3\u003e\u003cp\u003eFeed once or twice daily in small amounts. In a mature tank, one evening algae wafer plus vegetable matter several times per week is often enough for a single adult. Remove uneaten vegetables within 12-24 hours. The goal is a rounded belly, active grazing, and no leftover food trapped under wood or rock.\u003c\/p\u003e\u003ctable class=\"comparison-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTime\u003c\/th\u003e\n\u003cth\u003eFood\u003c\/th\u003e\n\u003cth\u003eAmount\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMorning\u003c\/td\u003e\n\u003ctd\u003eBlanched courgette or spinach\u003c\/td\u003e\n\u003ctd\u003eSmall slice, remove leftovers later\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEvening\u003c\/td\u003e\n\u003ctd\u003eSpirulina or algae wafer\u003c\/td\u003e\n\u003ctd\u003e1 small wafer per adult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cdiv class=\"warning-box\"\u003e\n\u003ch4\u003e⚠️ Feeding Warning\u003c\/h4\u003e\n\u003cp\u003eOverfeeding causes ammonia spikes, trapped waste, and poor oxygen levels. For a river pleco, dirty low-oxygen water is far more dangerous than a slightly lean feeding day. Keep the tank mature and the portions controlled.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"appearance\"\u003eChaetostoma thomsoni L187B Appearance: Colors, Patterns \u0026amp; Varieties\u003c\/h2\u003e\u003cp\u003eThis species has the classic bulldog or rubbernose profile: a broad flattened head, ventral sucker mouth, low body, and heavy armour plating. Adult size is around 12 cm, much smaller than many common plecs, which is why it attracts aquarists looking for a manageable specialist. Searches for \u003cstrong\u003esiamese algae eater size\u003c\/strong\u003e or \u003cstrong\u003esiamese algae eater adult size\u003c\/strong\u003e often come from shoppers comparing algae grazers, but L187B has a very different body plan and behaviour from those torpedo-shaped cyprinids.\u003c\/p\u003e\u003cp\u003eColouration is usually a mix of chocolate brown, tan, and darker banding or mottling across the body and fins. In the right setup, the contrast becomes stronger over pale sand and dark rounded stones. Our photos show the intense earthy patterning achieved through stable water quality, shaded retreats, and a diet rich in spirulina and vegetable matter. While it is not the \u003cstrong\u003emost colourful pleco\u003c\/strong\u003e in the trade, it is among the most distinctive in shape and texture.\u003c\/p\u003e\u003cp\u003eMales may develop a broader head and stronger odontodal texture around the cheeks and pectoral area as they mature, while females are often slightly fuller-bodied when viewed from above. This is subtler than in bristlenose plecs, so sexing young fish is not always easy. Hobbyists searching \u003cstrong\u003ewhat does a siamese algae eater look like\u003c\/strong\u003e or \u003cstrong\u003edo siamese algae eaters eat black beard algae\u003c\/strong\u003e are usually researching another algae grazer entirely; L187B is chosen more for biofilm and soft algae grazing than for solving every nuisance algae problem. It may pick at soft films and some green algae, but it should not be bought solely to eliminate \u003cstrong\u003esiamese algae eater black algae\u003c\/strong\u003e type issues in a neglected tank.\u003c\/p\u003e\u003ch2 id=\"compatibility\"\u003eWhat Fish Can Live With Chaetostoma thomsoni L187B? Compatibility Guide\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eChaetostoma Thomsoni L187B tank mates\u003c\/strong\u003e should be peaceful, non-aggressive fish that appreciate similar water movement and stable conditions. This species is a good choice \u003cstrong\u003efor community tank\u003c\/strong\u003e setups when the community is built around calm midwater species and other non-pushy bottom dwellers. In many aquariums, it ranks among the best \u003cstrong\u003epeaceful bottom dwellers for aquarium\u003c\/strong\u003e displays because it spends its time grazing rather than harassing tank mates.\u003c\/p\u003e\u003ch3\u003eIdeal Tank Mates\u003c\/h3\u003e\u003cp\u003eGood companions include small to medium tetras, peaceful rasboras in suitable temperature ranges, Corydoras that enjoy oxygen-rich water, and calm livebearers if the temperature is not too high. Shrimp can work in some setups, especially larger established colonies with plenty of cover. We also recommend browsing similar Loricariidae if you want a pleco-focused display, such as the \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eLong Fin Guama Bristlenose Pleco\u003c\/a\u003e, \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eBlue Phantom Pleco - Hemiancistrus Sp.\u003c\/a\u003e, \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eL134 Leopard Frog Pleco - Peckoltia\u003c\/a\u003e, and \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eL333 Maze Zebra Pleco - Hypancistrus\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eMany compatibility searches online revolve around Siamese algae eaters, such as \u003cstrong\u003eare siamese algae eaters community fish\u003c\/strong\u003e, \u003cstrong\u003eare siamese algae eaters schooling fish\u003c\/strong\u003e, \u003cstrong\u003ecan siamese algae eaters live with corydoras\u003c\/strong\u003e, or \u003cstrong\u003ecan siamese algae eaters live with shrimp\u003c\/strong\u003e. Those questions are useful for comparison, but L187B is not a schooling fish and is usually kept singly or as a carefully structured small group with enough space and caves. It is generally more site-attached and less boisterous than a Siamese algae eater.\u003c\/p\u003e\u003ch3\u003eSpecies to Avoid\u003c\/h3\u003e\u003cp\u003eAvoid aggressive cichlids, large territorial bottom fish, and boisterous species that outcompete it for food. Questions like \u003cstrong\u003ecan siamese algae eaters live with african cichlids\u003c\/strong\u003e, \u003cstrong\u003esiamese algae eater with cichlids\u003c\/strong\u003e, or \u003cstrong\u003esiamese algae eater with african cichlids\u003c\/strong\u003e highlight a common mistake: mixing algae grazers with rough tank mates and assuming all bottom fish are tough enough to cope. Chaetostoma are peaceful and can be stressed by constant chasing.\u003c\/p\u003e\u003cp\u003eLikewise, if you are asking \u003cstrong\u003ecan siamese algae eater live with betta\u003c\/strong\u003e, \u003cstrong\u003ecan siamese algae eaters live with bettas\u003c\/strong\u003e, or \u003cstrong\u003ecan siamese algae eaters live with goldfish\u003c\/strong\u003e, those are separate stocking questions for a different species. L187B should not be mixed with goldfish because of differing waste output and husbandry style, and betta tanks are usually too warm and too still for this fish.\u003c\/p\u003e\u003ch3\u003eCompatibility with Shrimp and Fry\u003c\/h3\u003e\u003cp\u003eEstablished adult shrimp are often safe, which is why some keepers compare searches like \u003cstrong\u003eare siamese algae eaters safe with shrimp\u003c\/strong\u003e, \u003cstrong\u003ecan siamese algae eaters live with cherry shrimp\u003c\/strong\u003e, \u003cstrong\u003edo siamese algae eaters eat cherry shrimp\u003c\/strong\u003e, or \u003cstrong\u003ewill siamese algae eaters eat cherry shrimp\u003c\/strong\u003e. A well-fed Chaetostoma is not a dedicated shrimp hunter, but very small shrimplets may always be at some risk in mixed tanks. The same goes for fry. It is not a specialist predator, yet newly hatched fry can disappear in any community aquarium.\u003c\/p\u003e\u003ctable class=\"comparison-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecies\u003c\/th\u003e\n\u003cth\u003eCompatible?\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eLemon Bristlenose Pleco - Ancistrus Sp.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e⚠️ Caution\u003c\/td\u003e\n\u003ctd\u003ePossible in larger tanks with multiple caves and feeding spots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorydoras\u003c\/td\u003e\n\u003ctd\u003e✅ Yes\u003c\/td\u003e\n\u003ctd\u003eGood choice if oxygen is high and floor space is generous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAggressive cichlids\u003c\/td\u003e\n\u003ctd\u003e❌ Avoid\u003c\/td\u003e\n\u003ctd\u003eStress, injury risk, and food competition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cdiv class=\"tip-box\"\u003e\n\u003ch4\u003e💡 Compatibility Tip\u003c\/h4\u003e\n\u003cp\u003eAlways quarantine new arrivals for 2-4 weeks before adding them to a Chaetostoma setup. This species values stability, and introducing parasites or bacterial issues into a cool, high-flow community can quickly affect every bottom-dweller in the tank.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"breeding\"\u003eHow to Breed Chaetostoma thomsoni L187B: Complete Breeding Guide\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eChaetostoma Thomsoni L187B breeding\u003c\/strong\u003e is considered moderate rather than easy. It is achievable for experienced aquarists, but not as straightforward as breeding bristlenose plecs. If you want a species that rewards careful setup and observation, this is an excellent project fish.\u003c\/p\u003e\u003ch3\u003eBreeding Setup\u003c\/h3\u003e\u003cp\u003eUse a species-focused or lightly stocked breeding tank of at least 100 litres with strong oxygenation, rounded rockwork, and narrow caves or crevices. Condition the fish with a rich vegetable-based diet, regular water changes, and stable cool water. Slight seasonal simulation with cooler water changes and increased flow can help trigger spawning behaviour.\u003c\/p\u003e\u003ch3\u003eSpawning Behaviour\u003c\/h3\u003e\u003cp\u003eMales usually claim a cave or sheltered spot and defend it from rivals. Courtship is subtle compared with more flamboyant fish. The female deposits eggs in a secure site, and the male may guard them. Hobbyists searching \u003cstrong\u003edo siamese algae eaters lay eggs\u003c\/strong\u003e, \u003cstrong\u003ehow do siamese algae eaters breed\u003c\/strong\u003e, \u003cstrong\u003esiamese algae eater breeding\u003c\/strong\u003e, \u003cstrong\u003esiamese algae eater breeding behavior\u003c\/strong\u003e, \u003cstrong\u003esiamese algae eater laying eggs\u003c\/strong\u003e, or \u003cstrong\u003esiamese algae eater reproduction\u003c\/strong\u003e are often trying to understand egg-laying algae grazers generally; Chaetostoma also lays eggs, but with cave-associated pleco behaviour rather than open scattering.\u003c\/p\u003e\u003ch3\u003eEgg Care and Hatching\u003c\/h3\u003e\u003cp\u003eThe eggs should be left with the guarding male if he is calm and the tank is stable. Good flow and oxygen are critical. If fungus appears, water quality is usually the first issue to review. Depending on temperature, hatching may occur in roughly a week, with wrigglers remaining attached or sheltered until the yolk sac is absorbed.\u003c\/p\u003e\u003ch3\u003eFry Care and Growth\u003c\/h3\u003e\u003cp\u003eOnce free-swimming, fry need very fine biofilm, powdered spirulina foods, softened algae wafers, and blanched vegetables. A mature rearing tank with algae-coated stones is a major advantage. The \u003cstrong\u003echaetostoma thomsoni l187b growth rate\u003c\/strong\u003e is steady rather than rapid, and fry do best with frequent small water changes and zero swings in oxygen levels.\u003c\/p\u003e\u003cp\u003eSearches such as \u003cstrong\u003esiamese algae eater baby\u003c\/strong\u003e, \u003cstrong\u003esiamese algae eater fry\u003c\/strong\u003e, \u003cstrong\u003esiamese algae eater eggs\u003c\/strong\u003e, \u003cstrong\u003esiamese algae eater how to breed\u003c\/strong\u003e, \u003cstrong\u003esiamese algae eater male vs female\u003c\/strong\u003e, and \u003cstrong\u003esiamese algae eater male vs female pictures\u003c\/strong\u003e show how often aquarists struggle with sexing and fry care in algae-eating fish. With L187B, the key is less about bold sexual traits and more about body shape, cave holding, and patient conditioning. Also note that questions like \u003cstrong\u003edo siamese algae eater eat guppy fry\u003c\/strong\u003e, \u003cstrong\u003esiamese algae eater eat guppy fry\u003c\/strong\u003e, \u003cstrong\u003ewill siamese algae eater eat guppy fry\u003c\/strong\u003e, and \u003cstrong\u003ewill siamese algae eaters eat fry\u003c\/strong\u003e are not central to this species, though any bottom fish may opportunistically consume weak or dead fry.\u003c\/p\u003e\u003cdiv class=\"tip-box\"\u003e\n\u003ch4\u003eAdvanced Breeding Tip\u003c\/h4\u003e\n\u003cp\u003eFor the best chance of success, condition a mature pair in a high-flow tank with several tight stone caves facing into the current. Many experienced pleco keepers report better spawning response when the fish can choose between multiple cave widths rather than being forced into one standard tube.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"comparison\"\u003eChaetostoma thomsoni L187B vs Similar Species: Which Should You Choose?\u003c\/h2\u003e\u003cp\u003eChoosing the right pleco matters because similar-looking species can have very different adult sizes, diets, and water needs. If you are comparing a \u003cstrong\u003ecold water pleco for sale uk\u003c\/strong\u003e style search, a \u003cstrong\u003ebristlenose pleco for sale uk\u003c\/strong\u003e result, or even a \u003cstrong\u003elarge pleco for sale uk\u003c\/strong\u003e listing, L187B stands out as a compact, cool-water, current-loving algae grazer rather than a generalist warm-water plec.\u003c\/p\u003e\u003ctable class=\"comparison-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eChaetostoma thomsoni L187B\u003c\/th\u003e\n\u003cth\u003eLemon Bristlenose Pleco\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Size\u003c\/td\u003e\n\u003ctd\u003e12 cm\u003c\/td\u003e\n\u003ctd\u003e10-13 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCare Level\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003ctd\u003eEasy to moderate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature\u003c\/td\u003e\n\u003ctd\u003e22-26°C\u003c\/td\u003e\n\u003ctd\u003e23-27°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e£19.35\u003c\/td\u003e\n\u003ctd\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eRiver-style tanks, cool high-flow setups\u003c\/td\u003e\n\u003ctd\u003eGeneral community aquariums\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ctable class=\"comparison-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eChaetostoma thomsoni L187B\u003c\/th\u003e\n\u003cth\u003eL333 Maze Zebra Pleco\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiet Focus\u003c\/td\u003e\n\u003ctd\u003eAlgae, biofilm, vegetables\u003c\/td\u003e\n\u003ctd\u003eMore protein-rich omnivore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBehaviour\u003c\/td\u003e\n\u003ctd\u003ePeaceful grazer\u003c\/td\u003e\n\u003ctd\u003eShy cave-dweller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank Style\u003c\/td\u003e\n\u003ctd\u003eCool, oxygen-rich current\u003c\/td\u003e\n\u003ctd\u003eWarm, highly structured pleco cave setup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e£19.35\u003c\/td\u003e\n\u003ctd\u003eHigher specialist price\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eNatural algae-grazing display\u003c\/td\u003e\n\u003ctd\u003eCollectors of rare plecos\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eChoose L187B if you want a specialist riverine pleco with strong personality, manageable size, and visible daytime grazing. Choose a bristlenose if you want easier breeding and more flexibility. Choose a zebra-type or panaque-type pleco if you are building a more specialist collection, such as with the \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eL090 Papa Panaque - Panaque Bathyphilus\u003c\/a\u003e or \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eL333 Maze Zebra Pleco - Hypancistrus\u003c\/a\u003e. If you have been searching \u003cstrong\u003egold spotted dwarf pleco for sale uk\u003c\/strong\u003e, L187B fills a similar niche in terms of manageable size, but with its own cool-stream requirements.\u003c\/p\u003e\u003ch2 id=\"health\"\u003eCommon Health Problems in Chaetostoma thomsoni L187B \u0026amp; How to Prevent Them\u003c\/h2\u003e\u003ch3\u003eSigns of a Healthy Fish\u003c\/h3\u003e\u003cp\u003eGood \u003cstrong\u003eChaetostoma Thomsoni L187B health\u003c\/strong\u003e is shown by steady grazing, a full but not bloated belly, intact fins, clear eyes, and a strong grip on glass or rock in the current. Healthy fish are alert and responsive, not gasping at the surface or sitting in still corners. A solid \u003cstrong\u003eChaetostoma Thomsoni L187B care guide\u003c\/strong\u003e always starts with oxygen and cleanliness.\u003c\/p\u003e\u003ch3\u003eCommon Problems\u003c\/h3\u003e\u003cp\u003eThe main risks are starvation in immature tanks, stress from low oxygen, bacterial issues from dirty substrate, and skin damage from rough décor. Like many scaleless or lightly protected catfish, they can also react badly to harsh medications. Search terms like \u003cstrong\u003esiamese algae eater disease\u003c\/strong\u003e are common because algae grazers often show stress quickly when water quality slips; the same principle applies here. This fish is hardy in the right setup and fragile in the wrong one.\u003c\/p\u003e\u003ch3\u003eTreatment and Prevention\u003c\/h3\u003e\u003cp\u003ePrevention is better than cure. Keep nitrate low with weekly water changes, maintain strong flow, and ensure the fish is actually eating prepared foods rather than relying on hope and glass algae. If treatment is needed, use species-appropriate doses and increase aeration. Quarantine first whenever possible. If the fish stops grazing, loses weight, or breathes rapidly, check oxygen, temperature, and ammonia before reaching for medication.\u003c\/p\u003e\u003cdiv class=\"warning-box\"\u003e\n\u003ch4\u003e⚠️ Health Warning\u003c\/h4\u003e\n\u003cp\u003eNever treat blindly with strong medications in a low-oxygen tank. Chaetostoma plecs are far more likely to decline from poor water quality and oxygen stress than from a problem solved by random dosing. If shrimp are present, remember that many medications can also harm invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"info-box\"\u003e\n\u003ch4\u003e🔹 Quarantine Protocol\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUse a separate tank for 2-4 weeks\u003c\/li\u003e\n\u003cli\u003eProvide strong aeration and simple caves\u003c\/li\u003e\n\u003cli\u003eObserve feeding response daily\u003c\/li\u003e\n\u003cli\u003eCheck for weight loss, flashing, or rapid breathing\u003c\/li\u003e\n\u003cli\u003ePerform regular small water changes\u003c\/li\u003e\n\u003cli\u003eOnly medicate when symptoms are clear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cp\u003eCustomers also ask broader questions like \u003cstrong\u003ewhat is a siamese algae eater\u003c\/strong\u003e, \u003cstrong\u003ewhat eats siamese algae eater\u003c\/strong\u003e, or \u003cstrong\u003ehow to tell if a siamese algae eater is male or female\u003c\/strong\u003e when comparing algae fish. For L187B, the more important health question is whether your system truly matches its riverine needs. Correct setup prevents most losses.\u003c\/p\u003e\u003ch2 id=\"behavior\"\u003eUnderstanding Chaetostoma thomsoni L187B Behavior in the Aquarium\u003c\/h2\u003e\u003cp\u003eThis species is peaceful, observant, and strongly tied to surfaces. It spends much of the day grazing rock, wood, and glass, often facing into the current. In a settled aquarium, it may become surprisingly visible, especially around feeding time. That makes it a favourite for aquarists who enjoy natural foraging behaviour rather than constant open-water swimming.\u003c\/p\u003e\u003cp\u003eIt is not a schooling fish. One fish works well, and a small group can work in larger tanks with multiple caves and feeding zones. Mild territorial behaviour may appear between bottom-dwellers, especially around favourite resting spots, but this is usually limited to posturing and displacement rather than serious aggression. Questions like \u003cstrong\u003eare siamese algae eaters aggressive\u003c\/strong\u003e, \u003cstrong\u003eare siamese algae eaters territorial\u003c\/strong\u003e, \u003cstrong\u003ecan siamese algae eaters be aggressive\u003c\/strong\u003e, \u003cstrong\u003ewhy is my siamese algae eater aggressive\u003c\/strong\u003e, \u003cstrong\u003eare siamese algae eaters aggressive to other fish\u003c\/strong\u003e, and \u003cstrong\u003ewhen do chinese algae eaters become aggressive\u003c\/strong\u003e reflect confusion between very different algae fish. L187B is generally much calmer than adult Chinese algae eaters and less restless than Siamese algae eaters.\u003c\/p\u003e\u003cp\u003eTo encourage natural behaviour, provide current, shaded retreats, mature surfaces to graze, and a stable routine. A stressed fish hides constantly; a comfortable fish explores and feeds openly. In that sense, behaviour is one of the best indicators that your husbandry is correct.\u003c\/p\u003e\u003ch2 id=\"why-buy\"\u003eWhy Buy from Tropical Fish Co?\u003c\/h2\u003e\u003cp\u003eWhen you buy a specialist fish like L187B, the difference is not marketing language; it is preparation. This is not a generic common plec. It is a current-loving Colombian catfish that needs to arrive in good condition, settle quickly, and begin feeding without delay. That is why each fish is observed for condition, body weight, and grazing behaviour before dispatch. We pay close attention to belly shape and attachment strength, because these are practical indicators that matter for a species with such specific environmental needs.\u003c\/p\u003e\u003cp\u003eFor customers searching \u003cstrong\u003ecatfish for sale UK\u003c\/strong\u003e, \u003cstrong\u003epleco fish for sale uk\u003c\/strong\u003e, \u003cstrong\u003epleco fish for sale near me\u003c\/strong\u003e, \u003cstrong\u003ebuy Chaetostoma Thomsoni L187B UK\u003c\/strong\u003e, \u003cstrong\u003eChaetostoma Thomsoni L187B for sale UK\u003c\/strong\u003e, or \u003cstrong\u003eorder Chaetostoma Thomsoni L187B online UK\u003c\/strong\u003e, careful packing is just as important as fish selection. Fish are sent in insulated packaging with oxygenated bags, heat packs in winter when needed, and tracked delivery to reduce transit stress. Acclimation guidance is included so buyers can match temperature and oxygen conditions properly on arrival.\u003c\/p\u003e\u003cp\u003eShoppers also compare \u003cstrong\u003epleco fish price uk\u003c\/strong\u003e and \u003cstrong\u003eChaetostoma Thomsoni L187B price UK\u003c\/strong\u003e before ordering. Price matters, but with this species the real value is receiving a fish that has been checked for feeding response and prepared for life in a UK home aquarium. If you have been looking at \u003cstrong\u003ealgae eating fish for ponds for sale\u003c\/strong\u003e, \u003cstrong\u003ealgae eating fish for ponds for sale near me\u003c\/strong\u003e, or \u003cstrong\u003ewhere to buy algae eating fish for ponds\u003c\/strong\u003e, remember that L187B is a specialist indoor aquarium fish, not a pond grazer. For aquarists wanting a true \u003cstrong\u003epleco for sale UK\u003c\/strong\u003e listing with species-specific care support, this is a far better choice than buying a random algae eater under a vague label.\u003c\/p\u003e\u003cp\u003eOrder your \u003cem\u003eChaetostoma thomsoni\u003c\/em\u003e today with confidence if you can provide cool, clean, fast-moving water and a mature tank. This is a rewarding pleco for keepers who appreciate detail, behaviour, and genuine species character.\u003c\/p\u003e\u003cdiv class=\"care-highlight\"\u003e\n\u003ch4\u003eWhy Choose Tropical Fish Co for Chaetostoma thomsoni L187B\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEach fish is checked for body condition and active grazing behaviour before dispatch\u003c\/li\u003e\n\u003cli\u003ePacked specifically for a cool-water, oxygen-sensitive pleco rather than treated like a generic catfish shipment\u003c\/li\u003e\n\u003cli\u003eClear acclimation guidance helps buyers settle this specialist species into UK aquariums safely\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003ch2\u003eYou Might Also Like\u003c\/h2\u003e\u003cp\u003eIf you enjoy specialist plecos, compare this fish with the \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eBlue Phantom Pleco - Hemiancistrus Sp.\u003c\/a\u003e for another striking South American catfish with strong visual appeal. The \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eL134 Leopard Frog Pleco - Peckoltia\u003c\/a\u003e suits aquarists wanting warmer water and bolder patterning. For a more beginner-friendly alternative, the \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eLemon Bristlenose Pleco - Ancistrus Sp.\u003c\/a\u003e is a classic choice. Collectors may also enjoy the \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eL226 Iquitos Tiger Pleco - Panaqolus\u003c\/a\u003e or the \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003eL090 Papa Panaque - Panaque Bathyphilus\u003c\/a\u003e for a different feeding niche and body shape. If you are building a pleco-focused display, browse the wider \u003ca href=\"\/products\/pleco-for-sale-uk\"\u003epleco for sale UK collection\u003c\/a\u003e to compare size, diet, and water-flow needs before stocking.\u003c\/p\u003e","brand":"Tropical Fish Co","offers":[{"title":"Default Title","offer_id":57379830595919,"sku":"K257","price":28.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1408\/6735\/files\/pleco-for-sale-uk-chaetostoma-thomsoni-l187b-hero-driftwood-k257.webp?v=1776547499","url":"https:\/\/tropical-fish-co.myshopify.com\/products\/pleco-for-sale-uk-catfish-buy-online-l187b","provider":"Tropical Fish Co","version":"1.0","type":"link"}