{"product_id":"ropefish-bichir-snakefish-erpetoichthys-calabaricus-uk","title":"Reed fish, Snake fish — Ropefish (Erpetoichthys calabaricus) - UK","description":"\u003cp\u003eIf you want a fish that looks like a living fossil and behaves unlike almost anything else in freshwater fishkeeping, the Rope Fish, \u003cem\u003eErpetoichthys calabaricus\u003c\/em\u003e, is hard to beat. Also sold as reedfish, snakefish, or freshwater dinosaur eel, this long-bodied member of the Polypteridae family combines ancient looks with a calm, curious nature. Many hobbyists first search for \u003cstrong\u003erope fish size\u003c\/strong\u003e, \u003cstrong\u003eerpetoichthys calabaricus size\u003c\/strong\u003e, or \u003cstrong\u003eerpetoichthys calabaricus tank size\u003c\/strong\u003e because this species grows far larger than people expect. Adults commonly reach 60-90cm, live 15-20 years, and need a very large, secure aquarium with tight-fitting lids because they are famous escape artists. In the right setup, however, they are fascinating, peaceful predators that cruise the bottom and lower levels, explore every gap in the décor, and often learn to recognise feeding time.\u003c\/p\u003e\u003cp\u003eFor aquarists researching \u003cstrong\u003erope fish info\u003c\/strong\u003e, \u003cstrong\u003ewhat is a bichir fish\u003c\/strong\u003e, or whether \u003cstrong\u003eare rope fish aggressive\u003c\/strong\u003e, the answer is reassuring: Ropefish are usually peaceful toward fish too large to swallow, but they are opportunistic carnivores. That makes planning \u003cstrong\u003eropefish tank mates\u003c\/strong\u003e, \u003cstrong\u003eropefish tank size\u003c\/strong\u003e, and a proper \u003cstrong\u003eropefish diet\u003c\/strong\u003e essential before purchase. See our detailed photos showing the elongated body, segmented dorsal finlets, and rich olive-brown patterning that make this species such a standout in large West African and oddball aquariums. For keepers ready to provide space, security, and meaty foods, \u003cem\u003eErpetoichthys calabaricus\u003c\/em\u003e offers one of the most rewarding displays in the hobby.\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\u003eErpetoichthys calabaricus\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCare Level:\u003c\/strong\u003e Intermediate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMin Tank Size:\u003c\/strong\u003e 540 litres (119 gallons)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e 23-30°C (73-86°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 20 years\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperament:\u003c\/strong\u003e Peaceful, predatory toward very small fish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiet:\u003c\/strong\u003e Carnivore\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 Polypteriformes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFamily:\u003c\/strong\u003e Polypteridae\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenus:\u003c\/strong\u003e \u003cem\u003eErpetoichthys\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eErpetoichthys calabaricus\u003c\/em\u003e is the only species in its genus and is closely related to bichirs in the genus \u003cem\u003ePolypterus\u003c\/em\u003e. Aquarists often compare it with \u003ca href=\"\/products\/tropical-fish-uk\"\u003ePolypterus Senegalus - Senegal Bichir\u003c\/a\u003e and other ancient-looking oddballs. If you have searched \u003cstrong\u003epolypteridae\u003c\/strong\u003e, \u003cstrong\u003e1. bichir\u003c\/strong\u003e, \u003cstrong\u003ewhat are bichir fish\u003c\/strong\u003e, or even confused it with \u003cstrong\u003epetromyzon\u003c\/strong\u003e, it helps to know that Ropefish are not lampreys or eels. They are primitive ray-finned fishes with lungs, ganoid scales, and a lineage that stretches deep into fish evolution.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"origin\"\u003eWhere Do Rope Fish Come From? Natural Habitat Explained\u003c\/h2\u003e\u003cp\u003eIf you have wondered \u003cstrong\u003ewhere do ropefish come from\u003c\/strong\u003e or \u003cstrong\u003ewhere are bichir fish native to\u003c\/strong\u003e, this species comes from West and Central Africa, including Nigeria, Cameroon, Benin, Congo, and Angola. In nature, the \u003cstrong\u003eropefish habitat\u003c\/strong\u003e is made up of slow-moving rivers, floodplains, marshes, swamps, and densely vegetated backwaters. These areas are warm, often tea-stained or murky, and packed with roots, reeds, floating plants, and submerged cover. That natural environment explains why Ropefish prefer subdued lighting, calm areas, and plenty of shelter in the aquarium.\u003c\/p\u003e\u003cp\u003eObserving \u003cstrong\u003erope fish in the wild\u003c\/strong\u003e tells you a lot about captive care. These fish are crepuscular to nocturnal hunters that use smell and touch as much as sight. They move through tangled margins searching for insect larvae, worms, crustaceans, and small fish. Because they can breathe atmospheric air, they are adapted to oxygen-poor habitats and may occasionally rise to the surface. That does not mean poor filtration is acceptable; it simply explains one of their most unusual behaviours.\u003c\/p\u003e\u003cp\u003eSome search terms around this species overlap with other African oddballs, such as \u003cstrong\u003eafrican butterfly fish habitat\u003c\/strong\u003e, \u003cstrong\u003eafrican butterfly fish biotope\u003c\/strong\u003e, \u003cstrong\u003eafrican butterfly fish origin\u003c\/strong\u003e, \u003cstrong\u003efreshwater butterflyfish habitat\u003c\/strong\u003e, and \u003cstrong\u003eafrican butterfly fish in the wild\u003c\/strong\u003e. While Ropefish are not freshwater butterflyfish, both come from warm African waters and appreciate secure, well-covered aquariums with floating cover and calm zones. Questions like \u003cstrong\u003ecan freshwater butterflyfish live in a pond\u003c\/strong\u003e, \u003cstrong\u003efreshwater butterflyfish in pond\u003c\/strong\u003e, or \u003cstrong\u003erope fish in pond\u003c\/strong\u003e come up often, but in the UK these fish are not suitable for outdoor ponds because temperatures are too low for much of the year.\u003c\/p\u003e\u003cp\u003eIn a home aquarium, recreating this habitat means warm water, dimmer light, smooth décor, and multiple hiding places. A dark substrate, driftwood tangles, broad caves, and floating plants help the fish feel secure and show more natural movement patterns.\u003c\/p\u003e\u003cdiv class=\"tip-box\"\u003e\n\u003ch4\u003e💡 Expert Tip\u003c\/h4\u003e\n\u003cp\u003eMimicking the natural habitat of \u003cem\u003eErpetoichthys calabaricus\u003c\/em\u003e improves feeding response and reduces stress. In our experience, Ropefish settle faster when given shaded areas, smooth tunnels, and quiet tank mates rather than bright, open aquascapes.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"tank-setup\"\u003eHow to Set Up the Perfect Tank for Rope Fish\u003c\/h2\u003e\u003cp\u003eThe most important part of \u003cstrong\u003ehow to care for ropefish\u003c\/strong\u003e is understanding scale. A juvenile may look manageable, but adult size and body mass demand a serious aquarium. The true \u003cstrong\u003eropefish minimum tank size\u003c\/strong\u003e is 540 litres, and a better long-term \u003cstrong\u003eropefish tank size\u003c\/strong\u003e is around 680 litres or more. If you have seen debates around \u003cstrong\u003eropefish tank size reddit\u003c\/strong\u003e, the confusion usually comes from shops selling small juveniles without discussing adult growth. The same issue appears in searches for \u003cstrong\u003ebichir minimum tank size\u003c\/strong\u003e, \u003cstrong\u003ebichir tank size\u003c\/strong\u003e, \u003cstrong\u003ebichir fish tank size\u003c\/strong\u003e, \u003cstrong\u003ewhat size tank does a bichir need\u003c\/strong\u003e, and even \u003cstrong\u003edelhezi bichir tank size\u003c\/strong\u003e. Ropefish need floor space more than height, so choose a long, wide aquarium.\u003c\/p\u003e\u003ch3\u003eTank Size Requirements\u003c\/h3\u003e\u003cp\u003eFor one adult, 540 litres is the minimum practical footprint. For a group, or if you want \u003cstrong\u003eropefish with other fish\u003c\/strong\u003e, larger is strongly recommended. Many keepers ask \u003cstrong\u003ehow many ropefish in a tank\u003c\/strong\u003e; in very large systems, small groups can work well, but every additional fish increases the need for hiding places and filtration. Because they are long and muscular, these fish produce a meaningful bioload and need room to turn, forage, and avoid tank mates.\u003c\/p\u003e\u003ch3\u003eWater Parameters\u003c\/h3\u003e\u003cp\u003eStable water quality matters more than chasing exact numbers. Ideal \u003cstrong\u003eropefish water temperature\u003c\/strong\u003e is around 26°C, with a safe \u003cstrong\u003eropefish temperature\u003c\/strong\u003e range of 23-30°C. pH should stay between 6.0 and 7.5, and hardness between 5-20 dGH. These values also line up with broad \u003cstrong\u003ebichir tank temperature\u003c\/strong\u003e and \u003cstrong\u003eropefish water parameters\u003c\/strong\u003e recommendations used by experienced oddball keepers. Sudden swings are far more dangerous than slightly imperfect values.\u003c\/p\u003e\u003cdiv class=\"spec-grid\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"spec-value\"\u003e23-30°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\"\u003e5-20 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\"\u003e540L+\u003c\/div\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum Tank\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch3\u003eFiltration\u003c\/h3\u003e\u003cp\u003eA strong external canister or sump is best for a proper \u003cstrong\u003eropefish tank setup\u003c\/strong\u003e. Aim for efficient biological filtration and moderate turnover without blasting the fish with excessive current. Ropefish come from quieter waters, so use spray bars or returns that diffuse flow. If you are planning a full \u003cstrong\u003eropefish aquarium setup\u003c\/strong\u003e with large cichlids or catfish, oversize the filter from day one.\u003c\/p\u003e\u003ch3\u003eSubstrate\u003c\/h3\u003e\u003cp\u003eUse smooth sand or fine rounded gravel. Ropefish spend time nosing along the bottom and can scrape themselves on sharp gravel. Darker substrates also help them feel secure and show better colour. This is one of the most overlooked \u003cstrong\u003eropefish tank requirements\u003c\/strong\u003e and \u003cstrong\u003erope fish care requirements\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003ePlants \u0026amp; Decor\u003c\/h3\u003e\u003cp\u003eDense décor is essential. Include driftwood arches, smooth rock caves, PVC tunnels hidden behind wood, and robust plants attached to hardscape. In very large aquariums, Ropefish can also be kept in a \u003cstrong\u003eropefish in planted tank\u003c\/strong\u003e layout if plants are sturdy and the open swimming lanes remain clear. Floating plants are especially useful because they reduce glare and create shaded hunting zones. If you enjoy other West African oddballs, browse our \u003ca href=\"\/products\/west-africa\"\u003eWest Africa collection\u003c\/a\u003e for compatible species ideas.\u003c\/p\u003e\u003ch3\u003eLighting Requirements\u003c\/h3\u003e\u003cp\u003eModerate to low light works best. Bright lighting can make them hide all day. A dim period at dawn or dusk often encourages natural movement. If you want to observe them more often, feed in the evening under subdued light.\u003c\/p\u003e\u003cdiv class=\"info-box\"\u003e\n\u003ch4\u003eQuick Setup Checklist\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eChoose a tank of at least 540 litres, ideally 680 litres or more\u003c\/li\u003e\n\u003cli\u003eFit a tight, weighted lid with no gaps around pipes or cables\u003c\/li\u003e\n\u003cli\u003eMaintain 23-30°C, ideally close to 26°C\u003c\/li\u003e\n\u003cli\u003eUse smooth sand, caves, wood, and shaded areas\u003c\/li\u003e\n\u003cli\u003eInstall oversized biological filtration with moderate flow\u003c\/li\u003e\n\u003cli\u003eCycle the aquarium fully before adding fish\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 Ropefish. Because this species is sensitive to ammonia and nitrite, an immature filter is one of the fastest ways to turn a promising setup into a health problem.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"feeding\"\u003eWhat Do Rope Fish Eat? Complete Feeding Guide\u003c\/h2\u003e\u003cp\u003eThe best \u003cstrong\u003eropefish feeding guide\u003c\/strong\u003e starts with one simple fact: this is a carnivore. If you are asking \u003cstrong\u003ewhat do ropefish eat\u003c\/strong\u003e, \u003cstrong\u003ewhat do rope fish eat\u003c\/strong\u003e, \u003cstrong\u003ewhat to feed ropefish\u003c\/strong\u003e, or \u003cstrong\u003ehow to feed ropefish\u003c\/strong\u003e, think meaty, sinking, and smell-rich foods. In nature, Ropefish hunt worms, insect larvae, crustaceans, and small fish. That wild pattern also answers broader searches like \u003cstrong\u003ewhat bichir eat\u003c\/strong\u003e, \u003cstrong\u003ewhat can bichirs eat\u003c\/strong\u003e, \u003cstrong\u003ewhat do bichir eels eat\u003c\/strong\u003e, \u003cstrong\u003ewhat does bichir eat\u003c\/strong\u003e, and \u003cstrong\u003ewhat do bichirs eat in the wild\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eA strong captive \u003cstrong\u003eropefish diet\u003c\/strong\u003e should centre on high-quality carnivore pellets, sinking sticks, chopped prawn, mussel, earthworms, lancefish pieces, and occasional bloodworm for smaller juveniles. Many keepers also research \u003cstrong\u003ebichir diet\u003c\/strong\u003e and \u003cstrong\u003ebichir food requirements\u003c\/strong\u003e; the same principle applies here: variety matters. Rotate foods to cover protein, fats, and trace nutrients rather than relying on one frozen food forever.\u003c\/p\u003e\u003ch3\u003eStaple Foods\u003c\/h3\u003e\u003cp\u003eSinking carnivore pellets and soft meaty frozen foods should form the base of \u003cstrong\u003ebichir feeding\u003c\/strong\u003e. Feed after lights dim if the fish is shy. Target feeding with tongs works well in community tanks.\u003c\/p\u003e\u003cdiv class=\"food-recommendation\"\u003e\n\u003ca href=\"\/products\/tropical-fish-uk\"\u003eCarnivore pellets for bichirs and Ropefish\u003c\/a\u003e - A practical staple for large predatory oddballs that need dense nutrition in a sinking format.\u003c\/div\u003e\u003cdiv class=\"food-recommendation\"\u003e\n\u003ca href=\"\/products\/tropical-fish-uk\"\u003eFrozen bloodworm and meaty treats\u003c\/a\u003e - Useful for juveniles, fussy feeders, and conditioning fish before attempted breeding projects.\u003c\/div\u003e\u003ch3\u003eSupplemental Foods\u003c\/h3\u003e\u003cp\u003eChopped mussel, prawn, krill, earthworms, and insect-based foods help round out the diet. Avoid feeder fish as routine food because they can introduce parasites and often have poor nutritional value.\u003c\/p\u003e\u003ch3\u003eFeeding Frequency \u0026amp; Portion Control\u003c\/h3\u003e\u003cp\u003eJuveniles usually do best with small daily feeds. Adults can be fed 3-5 times per week depending on body condition and tank temperature. If you are wondering \u003cstrong\u003ewhy is my bichir not eating\u003c\/strong\u003e, check lighting, recent transport stress, water quality, and whether faster tank mates are stealing food first.\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\u003eUsually none for adults\u003c\/td\u003e\n\u003ctd\u003eOptional only for juveniles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEvening\u003c\/td\u003e\n\u003ctd\u003eSinking carnivore pellets or chopped prawn\u003c\/td\u003e\n\u003ctd\u003eWhat is eaten within 2-3 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eSome unrelated search phrases such as \u003cstrong\u003eafrican butterflyfish diet\u003c\/strong\u003e, \u003cstrong\u003efreshwater butterflyfish diet\u003c\/strong\u003e, \u003cstrong\u003ewhat do freshwater butterflyfish eat\u003c\/strong\u003e, \u003cstrong\u003ewhat freshwater butterflyfish eat\u003c\/strong\u003e, and \u003cstrong\u003ewhat day freshwater butterflyfish eat\u003c\/strong\u003e appear alongside Ropefish because both are oddball African predators. The key difference is feeding zone: butterflyfish take food from the surface, while Ropefish prefer the bottom and lower water column.\u003c\/p\u003e\u003cdiv class=\"warning-box\"\u003e\n\u003ch4\u003e⚠️ Feeding Warning\u003c\/h4\u003e\n\u003cp\u003eOverfeeding causes ammonia spikes, obesity, and poor water quality. Large carnivores foul water quickly, so remove uneaten food and never assume a hungry response means the fish needs another full meal.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"appearance\"\u003eRope Fish Appearance: Colors, Patterns \u0026amp; Varieties\u003c\/h2\u003e\u003cp\u003eThe first question many buyers ask is simple: \u003cstrong\u003ewhat are bichirs related to\u003c\/strong\u003e and why does this fish look so ancient? Ropefish belong to an old lineage of ray-finned fishes with armour-like ganoid scales and a row of separate dorsal finlets. Their body is elongated, cylindrical, and eel-like, but they are not true eels. The head is blunt, the pectoral fins are surprisingly expressive, and the body tapers into a long tail that lets them weave through dense cover with ease.\u003c\/p\u003e\u003cp\u003eAdult \u003cstrong\u003erope fish size\u003c\/strong\u003e is substantial. The expected \u003cstrong\u003eerpetoichthys calabaricus size\u003c\/strong\u003e in captivity is usually 60-90cm, depending on age, feeding, and space. This alone is why \u003cstrong\u003eerpetoichthys calabaricus tank size\u003c\/strong\u003e and \u003cstrong\u003ewhat size tank does a bichir need\u003c\/strong\u003e are such important buying questions. Juveniles sold at only a fraction of adult length can mislead new keepers.\u003c\/p\u003e\u003cp\u003eColour is usually olive, tan, brown, or grey-brown with a lighter underside. Under dim lighting and over dark substrate, the fish often develops a richer chocolate or mossy tone. Our photos show the intense natural brown coloration achieved through low-stress housing, shaded décor, and a varied meaty diet. There are no mainstream fancy colour morphs in the hobby, which is part of the appeal: this species looks wild, primitive, and unmistakable.\u003c\/p\u003e\u003cp\u003eMany hobbyists search \u003cstrong\u003efemale rope fish\u003c\/strong\u003e, \u003cstrong\u003eropefish male vs female\u003c\/strong\u003e, or \u003cstrong\u003erope fish male or female\u003c\/strong\u003e. Sexing is difficult, but mature males usually have a broader, more muscular anal fin, while females can appear fuller-bodied when well grown. This is subtle and unreliable in juveniles.\u003c\/p\u003e\u003ch2 id=\"compatibility\"\u003eWhat Fish Can Live With Rope Fish? Compatibility Guide\u003c\/h2\u003e\u003cp\u003eOne of the most common questions is \u003cstrong\u003ewhat can rope fish live with\u003c\/strong\u003e. Another is \u003cstrong\u003eare rope fish aggressive\u003c\/strong\u003e. In most cases, Ropefish are peaceful but predatory. They do not usually bully tank mates, yet anything small enough to fit in the mouth is at risk, especially overnight. So the real compatibility rule is size and temperament. Good \u003cstrong\u003eropefish compatible fish\u003c\/strong\u003e are calm to moderately assertive species that are too large to be swallowed and do not harass slow, bottom-oriented fish.\u003c\/p\u003e\u003cp\u003eThat makes sensible \u003cstrong\u003eropefish tank mates\u003c\/strong\u003e include Synodontis catfish, larger characins, Severums, and Angelfish in suitably large aquariums. If you are asking \u003cstrong\u003ecan rope fish live with angelfish\u003c\/strong\u003e or \u003cstrong\u003ecan bichir live with angelfish\u003c\/strong\u003e, the answer can be yes in a very large tank, provided the angelfish are too large to be eaten and the Ropefish are well fed. Good examples from our range include \u003ca href=\"\/products\/tropical-fish-uk\"\u003ePolypterus Senegalus - Senegal Bichir\u003c\/a\u003e, \u003ca href=\"\/products\/tropical-fish-uk\"\u003ePolypterus Senegalus «Albino» - Albino Senegal\u003c\/a\u003e, \u003ca href=\"\/products\/tropical-fish-uk\"\u003ePolypterus Delhezi - Barred Bichir\u003c\/a\u003e, and \u003ca href=\"\/products\/west-africa\"\u003ePolypterus Bichir Lapradei - Laprade'S Bichir\u003c\/a\u003e for experienced keepers building a large oddball display.\u003c\/p\u003e\u003cp\u003ePeople also ask \u003cstrong\u003ewhat can bichir live with\u003c\/strong\u003e, \u003cstrong\u003ecan bichir live with other fish\u003c\/strong\u003e, and \u003cstrong\u003eare bichir fish aggressive\u003c\/strong\u003e. The answer is similar across the group: choose robust fish of comparable size, avoid fin-nippers, and avoid tiny community species. Searches like \u003cstrong\u003ecan bichir live with goldfish\u003c\/strong\u003e usually end in a no because goldfish need cooler water, produce heavy waste, and are poor matches for tropical predatory oddballs.\u003c\/p\u003e\u003cp\u003eSome search traffic overlaps with butterflyfish questions such as \u003cstrong\u003eafrican butterfly fish community tank\u003c\/strong\u003e, \u003cstrong\u003eafrican butterfly fish compatibility\u003c\/strong\u003e, \u003cstrong\u003eafrican butterfly fish in community tank\u003c\/strong\u003e, \u003cstrong\u003eafrican butterfly fish peaceful\u003c\/strong\u003e, \u003cstrong\u003eafrican butterfly fish aggressive\u003c\/strong\u003e, \u003cstrong\u003eafrican butterflyfish tank mates\u003c\/strong\u003e, \u003cstrong\u003ebutterfly fish freshwater tank mates\u003c\/strong\u003e, and \u003cstrong\u003ecan freshwater butterflyfish live with other fish\u003c\/strong\u003e. While Ropefish and butterflyfish can share broad regional themes, they use different levels of the tank and have different feeding styles, so compatibility depends on tank size and careful observation.\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\/tropical-fish-uk\"\u003ePolypterus Senegalus - Senegal Bichir\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e✅ Yes\u003c\/td\u003e\n\u003ctd\u003eWorks in very large tanks with similar-sized individuals and plenty of floor space.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/tropical-fish-uk\"\u003ePolypterus Delhezi - Barred Bichir\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e⚠️ Caution\u003c\/td\u003e\n\u003ctd\u003ePossible in oversized setups, but monitor feeding competition and adult size differences.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSmall tetras, guppies, rasboras\u003c\/td\u003e\n\u003ctd\u003e❌ Avoid\u003c\/td\u003e\n\u003ctd\u003eLikely to be eaten once the Ropefish settles in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eAre \u003cstrong\u003eare ropefish social\u003c\/strong\u003e? They are not schooling fish, but they often tolerate one another well in large aquariums and may rest together. Invertebrates are usually a poor choice. Small shrimp will be viewed as food, and snails may be disturbed while the fish forages.\u003c\/p\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 Ropefish aquarium. Large predatory fish can hide early disease signs, and a single parasite introduction is much harder to manage in a heavily stocked oddball tank.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"breeding\"\u003eHow to Breed Rope Fish: Complete Breeding Guide\u003c\/h2\u003e\u003cp\u003eAnyone researching \u003cstrong\u003erope fish breeding\u003c\/strong\u003e, \u003cstrong\u003eropefish breeding\u003c\/strong\u003e, \u003cstrong\u003ehow to breed ropefish\u003c\/strong\u003e, \u003cstrong\u003ebichir breeding\u003c\/strong\u003e, or \u003cstrong\u003eerpetoichthys calabaricus breeding\u003c\/strong\u003e should know the honest answer: successful aquarium breeding is effectively unrecorded and widely considered impossible under normal hobby conditions. Unlike some species where a clear \u003cstrong\u003ebichir breeding behavior\u003c\/strong\u003e pattern is documented, Ropefish remain one of the hobby's enduring mysteries.\u003c\/p\u003e\u003cp\u003eThat means there is no reliable home method for a proven \u003cstrong\u003erope fish breeding\u003c\/strong\u003e setup. Mature fish can be hard to sex, and while keepers discuss \u003cstrong\u003eropefish male vs female\u003c\/strong\u003e and \u003cstrong\u003erope fish male or female\u003c\/strong\u003e, differences remain subtle. Males may show a thicker anal fin, but this is not enough to build a dependable breeding programme around.\u003c\/p\u003e\u003ch3\u003eBreeding Setup\u003c\/h3\u003e\u003cp\u003eIf you still want to attempt conditioning, provide a very large, warm, heavily planted or densely structured aquarium with excellent water quality and a rich varied diet. Seasonal water changes that mimic rainfall are sometimes discussed in relation to bichirs, but there is no consistent published protocol for Ropefish.\u003c\/p\u003e\u003ch3\u003eSpawning Behaviour\u003c\/h3\u003e\u003cp\u003eThere is no dependable aquarium record describing courtship, exact spawning triggers, or timing. Search terms like \u003cstrong\u003ewhat do bichir eggs look like\u003c\/strong\u003e are common, but for Ropefish there is no practical hobby reference point because confirmed spawning events in home aquaria are lacking.\u003c\/p\u003e\u003ch3\u003eEgg Care \u0026amp; Fry Care\u003c\/h3\u003e\u003cp\u003eBecause spawning has not been reliably documented, there is no standard incubation timeline, fry feeding schedule, or growth chart for this species in the hobby. Commercial supply is therefore believed to rely mainly on wild collection or specialised large-scale holding rather than routine captive propagation.\u003c\/p\u003e\u003cdiv class=\"tip-box\"\u003e\n\u003ch4\u003eAdvanced Breeding Tip\u003c\/h4\u003e\n\u003cp\u003eIf your goal is to study primitive fish reproduction, keep detailed records of seasonal temperature shifts, feeding intensity, and fin development in mature specimens. Even unsuccessful observations add useful husbandry knowledge for a species where aquarium reproduction remains poorly understood.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"comparison\"\u003eRope Fish vs Similar Species: Which Should You Choose?\u003c\/h2\u003e\u003cp\u003eRopefish are often compared with bichirs because they share the same family and a similar prehistoric appeal. If you are deciding between \u003cem\u003eErpetoichthys calabaricus\u003c\/em\u003e and \u003ca href=\"\/products\/tropical-fish-uk\"\u003ePolypterus Senegalus - Senegal Bichir\u003c\/a\u003e, the right choice depends on space, stocking goals, and whether you want a more eel-like swimmer or a more classic bichir body shape. People searching \u003cstrong\u003epolypterus senegalus\u003c\/strong\u003e, \u003cstrong\u003edinosaur birch fish\u003c\/strong\u003e, or \u003cstrong\u003ebest bichir for community tank\u003c\/strong\u003e are often comparing these exact options.\u003c\/p\u003e\u003ctable class=\"comparison-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eRope Fish\u003c\/th\u003e\n\u003cth\u003eSenegal Bichir\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\u003e60-90cm\u003c\/td\u003e\n\u003ctd\u003e30-40cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCare Level\u003c\/td\u003e\n\u003ctd\u003eIntermediate\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature\u003c\/td\u003e\n\u003ctd\u003e23-30°C\u003c\/td\u003e\n\u003ctd\u003e24-28°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003eVaries by size\u003c\/td\u003e\n\u003ctd\u003eUsually lower\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eLarge oddball aquariums\u003c\/td\u003e\n\u003ctd\u003eMedium-large bichir setups\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\u003eRope Fish\u003c\/th\u003e\n\u003cth\u003eBarred Bichir\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Shape\u003c\/td\u003e\n\u003ctd\u003eVery elongated, eel-like\u003c\/td\u003e\n\u003ctd\u003eChunkier, more typical bichir form\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwimming Style\u003c\/td\u003e\n\u003ctd\u003eGliding, weaving through cover\u003c\/td\u003e\n\u003ctd\u003eBottom cruising with short bursts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank Footprint Need\u003c\/td\u003e\n\u003ctd\u003eVery high\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEscape Risk\u003c\/td\u003e\n\u003ctd\u003eExtremely high\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eSpecialist display fish\u003c\/td\u003e\n\u003ctd\u003eExperienced bichir keepers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eChoose Ropefish if you want a true conversation piece, have the floor space for a giant secure aquarium, and enjoy observing unusual nocturnal behaviour. Choose a Senegal Bichir if you want a more manageable introduction to ancient oddballs. If you want a heavier-bodied species, consider \u003ca href=\"\/products\/tropical-fish-uk\"\u003ePolypterus Delhezi - Barred Bichir\u003c\/a\u003e or \u003ca href=\"\/products\/west-africa\"\u003ePolypterus Bichir Lapradei - Laprade'S Bichir\u003c\/a\u003e in suitably large systems.\u003c\/p\u003e\u003ch2 id=\"health\"\u003eCommon Health Problems in Rope Fish \u0026amp; How to Prevent Them\u003c\/h2\u003e\u003cp\u003eA healthy Ropefish has clear eyes, intact skin, smooth breathing, a strong feeding response, and controlled movement along the bottom and lower water column. If you are reading a \u003cstrong\u003ebichir care guide\u003c\/strong\u003e or asking \u003cstrong\u003ewhen do bichirs stop growing\u003c\/strong\u003e, remember that slow, steady growth depends on clean water, space, and diet. These fish are hardy once established, but they are not forgiving of poor setup.\u003c\/p\u003e\u003ch3\u003eCommon Problems\u003c\/h3\u003e\u003cp\u003eThe biggest non-disease risk is escape. Ropefish can squeeze through tiny gaps around lids, filters, and cables. Another common issue is skin damage from rough décor or poor handling. Newly imported fish may also carry parasites, especially if stressed. If you are wondering \u003cstrong\u003ewhy did my bichir die\u003c\/strong\u003e, common causes include ammonia spikes, jumping, starvation in competitive tanks, or untreated parasite loads after import.\u003c\/p\u003e\u003ch3\u003eFloating, Refusing Food, or Acting Oddly\u003c\/h3\u003e\u003cp\u003eSearches like \u003cstrong\u003ewhy is my bichir floating\u003c\/strong\u003e often relate to swallowed air, digestive upset, or water quality stress. Ropefish do gulp air naturally, so occasional surface trips are normal. Persistent imbalance, gasping, or unusual floating is not. Test water immediately and review recent feeding. If the fish stops eating, revisit the points behind \u003cstrong\u003ewhy is my bichir not eating\u003c\/strong\u003e: transport stress, low oxygen, bullying, or food offered at the wrong time of day.\u003c\/p\u003e\u003ch3\u003eTreatment \u0026amp; Prevention\u003c\/h3\u003e\u003cp\u003eQuarantine all new fish, keep ammonia and nitrite at zero, and perform regular partial water changes. Use medications carefully because primitive fishes can react badly to overdosing. Always verify dosage for oddballs and remove carbon when required by the treatment instructions.\u003c\/p\u003e\u003cdiv class=\"warning-box\"\u003e\n\u003ch4\u003e⚠️ Health Warning\u003c\/h4\u003e\n\u003cp\u003eNever leave gaps in the lid, and never assume a heavy fish cannot escape. Ropefish are powerful, flexible, and persistent. More losses come from escape than from many diseases.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"info-box\"\u003e\n\u003ch4\u003eQuarantine Protocol\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUse a separate heated tank for 2-4 weeks\u003c\/li\u003e\n\u003cli\u003eObserve breathing, skin condition, and feeding response daily\u003c\/li\u003e\n\u003cli\u003eKeep water pristine with frequent testing\u003c\/li\u003e\n\u003cli\u003eOffer easily accepted meaty foods during the first week\u003c\/li\u003e\n\u003cli\u003eOnly move the fish once it is feeding confidently and shows no signs of parasites\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cp\u003eFor hobbyists asking \u003cstrong\u003ebichir how to pronounce\u003c\/strong\u003e, it is usually said “BICK-ear” or “BISH-ear” depending on region. For those wondering \u003cstrong\u003ewhen did bichirs evolve\u003c\/strong\u003e, these fishes represent an ancient lineage, which is part of why their anatomy and medication sensitivity can differ from more typical community fish.\u003c\/p\u003e\u003ch2 id=\"behavior\"\u003eUnderstanding Rope Fish Behavior in the Aquarium\u003c\/h2\u003e\u003cp\u003eRopefish are calm, exploratory, and mostly nocturnal. During the day they often rest under wood, inside caves, or along plant cover. In the evening they become more active, moving with a slow gliding motion that explains why many people call them a \u003cstrong\u003efreshwater dinosaur eel\u003c\/strong\u003e. This behaviour also answers the question of whether \u003cstrong\u003eropefish for beginners\u003c\/strong\u003e is a good idea: only if the beginner is prepared for a very large tank, a secure lid, and predatory feeding.\u003c\/p\u003e\u003cp\u003eAre \u003cstrong\u003eare ropefish social\u003c\/strong\u003e? They are not schooling fish, but they are often tolerant of their own kind in spacious aquariums. They can even be seen resting together. Because they rely heavily on smell, they may seem clumsy at feeding time until they lock onto the scent of food. That is normal.\u003c\/p\u003e\u003cp\u003eTo encourage natural behaviour, use shaded areas, feed after dark, and avoid hyperactive tank mates. In a sparse, brightly lit tank, they may hide almost constantly. In a secure, dim, structured aquarium, they become one of the most interesting oddball fish you can keep.\u003c\/p\u003e\u003ch2 id=\"why-buy\"\u003eWhy Buy from Tropical Fish Co?\u003c\/h2\u003e\u003cp\u003eBuying a Ropefish is not like buying a small community fish. This species needs careful holding, secure packing, and clear advice before sale. When customers search \u003cstrong\u003ebuy ropefish UK\u003c\/strong\u003e, \u003cstrong\u003eropefish for sale UK\u003c\/strong\u003e, \u003cstrong\u003eropefish online UK\u003c\/strong\u003e, \u003cstrong\u003ewhere to buy ropefish UK\u003c\/strong\u003e, or \u003cstrong\u003eropefish shop UK\u003c\/strong\u003e, what they really need is confidence that the fish has been assessed properly and packed for a long-bodied, escape-prone species. That is exactly why this fish is treated differently from standard tropical stock.\u003c\/p\u003e\u003cp\u003eEach Ropefish is observed for feeding response, body condition, skin integrity, and normal respiration before dispatch. We only send specimens that are settled enough to handle transport well. For customers comparing \u003cstrong\u003eropefish price UK\u003c\/strong\u003e or looking for \u003cstrong\u003echeap ropefish UK\u003c\/strong\u003e, it is worth remembering that losses from poor handling, under-sized specimens, or weak imports cost more in the long run than buying a well-conditioned fish from the start.\u003c\/p\u003e\u003cp\u003eFor \u003cstrong\u003eropefish delivery UK\u003c\/strong\u003e, fish are packed in insulated boxes with professional fish bags, secure closures, and seasonal heat packs when needed. Tracked delivery reduces transit uncertainty, and acclimation guidance is included so the fish can settle into UK home aquariums with less stress. If you are looking for \u003cstrong\u003eropefish for sale\u003c\/strong\u003e, \u003cstrong\u003ebichir fish for sale\u003c\/strong\u003e, \u003cstrong\u003eorder ropefish UK\u003c\/strong\u003e, or even \u003cstrong\u003eerpetoichthys calabaricus for sale\u003c\/strong\u003e, this is the sort of species where careful preparation matters more than speed alone.\u003c\/p\u003e\u003cp\u003eWe also encourage buyers to plan the full setup before purchase. Many successful keepers pair Ropefish with species such as \u003ca href=\"\/products\/tropical-fish-uk\"\u003eAlbino Senegal Bichir\u003c\/a\u003e or \u003ca href=\"\/products\/tropical-fish-uk\"\u003eBarred Bichir\u003c\/a\u003e only after confirming tank volume, lid security, and feeding strategy. Order your Rope Fish today with confidence if you are ready to provide the space and secure environment this remarkable species deserves.\u003c\/p\u003e\u003cdiv class=\"care-highlight\"\u003e\n\u003ch4\u003eWhy Choose Tropical Fish Co for Rope Fish\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRopefish are assessed for feeding response and escape-risk handling before sale\u003c\/li\u003e\n\u003cli\u003eFish are packed with insulated materials and seasonal heat protection for UK transit\u003c\/li\u003e\n\u003cli\u003eCare guidance focuses on real issues for this species, including lid security, diet, and tank size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003ch2\u003eYou Might Also Like\u003c\/h2\u003e\u003cp\u003eIf you are building a large oddball or West African display, consider adding a few carefully chosen companions and related species. \u003ca href=\"\/products\/tropical-fish-uk\"\u003ePolypterus Senegalus - Senegal Bichir\u003c\/a\u003e is a classic entry into bichirs with a more manageable adult size. \u003ca href=\"\/products\/tropical-fish-uk\"\u003ePolypterus Senegalus «Albino» - Albino Senegal\u003c\/a\u003e offers the same prehistoric charm in a striking pale form. \u003ca href=\"\/products\/tropical-fish-uk\"\u003ePolypterus Delhezi - Barred Bichir\u003c\/a\u003e suits experienced keepers wanting a bolder patterned bichir, while \u003ca href=\"\/products\/west-africa\"\u003ePolypterus Bichir Lapradei - Laprade'S Bichir\u003c\/a\u003e is ideal for very large specialist systems. For broader stocking ideas, explore our \u003ca href=\"\/products\/west-africa\"\u003eWest Africa collection\u003c\/a\u003e or browse \u003ca href=\"\/products\/tropical-fish-uk\"\u003etropical fish UK oddballs and carnivore foods\u003c\/a\u003e to complete a practical Ropefish setup.\u003c\/p\u003e","brand":"Tropical Fish Co","offers":[{"title":"Default Title","offer_id":57379812475215,"sku":"K723","price":22.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1408\/6735\/files\/erpetoichthys-calabaricus-ropefish-hero-driftwood-k723.webp?v=1776547177","url":"https:\/\/tropical-fish-co.myshopify.com\/products\/ropefish-bichir-snakefish-erpetoichthys-calabaricus-uk","provider":"Tropical Fish Co","version":"1.0","type":"link"}