{"product_id":"mesonauta-insignis","title":"Mesonauta insignis - Cichlid Fish for Sale UK","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eMesonauta insignis\u003c\/strong\u003e, commonly known as the \u003cstrong\u003eFlag Cichlid\u003c\/strong\u003e, is a graceful South American cichlid prized for its striking body shape, subtle patterning and calm temperament. At 4–5 cm, these juveniles are a superb choice for aquarists looking to grow out a beautiful centrepiece fish for a larger, well-planned aquarium. Unlike many cichlids, \u003cem\u003eMesonauta insignis\u003c\/em\u003e is generally peaceful and can be kept in compatible community setups with the right tank size and water conditions.\u003c\/p\u003e\u003cp\u003eThis species is best suited to aquarists who can provide a mature aquarium with stable, warm, slightly acidic water and plenty of cover. In return, you’ll be rewarded with an intelligent, engaging fish that displays interesting social behaviour and a distinctive “flag-like” dorsal profile. All fish are supplied with our \u003cstrong\u003elive arrival guarantee\u003c\/strong\u003e and benefit from \u003cstrong\u003efast UK delivery\u003c\/strong\u003e for a smooth, reliable online ordering experience.\u003c\/p\u003e\u003cp\u003eBecause this is a live fish, please ensure your aquarium is fully cycled and ready before purchase. Juveniles may be small, but they grow into elegant fish that deserve space, clean water and a calm environment.\u003c\/p\u003e\u003ch2\u003eCare at a Glance\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eCare factor\u003c\/th\u003e\n\u003cth\u003eRecommendation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScientific name\u003c\/td\u003e\n\u003ctd\u003e\u003cem\u003eMesonauta insignis\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon name\u003c\/td\u003e\n\u003ctd\u003eFlag Cichlid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdult size\u003c\/td\u003e\n\u003ctd\u003eUp to around 15 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperament\u003c\/td\u003e\n\u003ctd\u003ePeaceful to semi-peaceful\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank level\u003c\/td\u003e\n\u003ctd\u003eMiddle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum tank size\u003c\/td\u003e\n\u003ctd\u003e250 litres+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature\u003c\/td\u003e\n\u003ctd\u003e24–28°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH\u003c\/td\u003e\n\u003ctd\u003e6.0–7.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiet\u003c\/td\u003e\n\u003ctd\u003eOmnivore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDifficulty\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOrigin \u0026amp; Natural Habitat\u003c\/h2\u003e\u003cp\u003e\u003cem\u003eMesonauta insignis\u003c\/em\u003e originates from South America, where it is found in slow-moving rivers, floodplains, backwaters and vegetated margins. In the wild, flag cichlids often inhabit areas with submerged roots, leaf litter and dense plant growth, using cover to feel secure while foraging through the water column. Their natural environment is typically warm, soft to moderately hard and slightly acidic, with seasonal changes in water level and chemistry.\u003c\/p\u003e\u003cp\u003eThis habitat preference explains why the species does best in an aquarium that mimics a calm, planted river system rather than a bare, high-flow setup. Providing visual barriers, driftwood and open swimming space helps reduce stress and encourages natural behaviour. A mature tank with stable water quality is especially important for long-term success.\u003c\/p\u003e\u003ch2\u003eTank Setup \u0026amp; Water Parameters\u003c\/h2\u003e\u003cp\u003eFor a single \u003cem\u003eMesonauta insignis\u003c\/em\u003e or a compatible pair, we recommend a tank of \u003cstrong\u003e250 litres or more\u003c\/strong\u003e, with larger aquariums preferred if keeping them in a community or with other cichlids. Their laterally compressed body and calm nature make them excellent display fish, but they still need room to establish territory and avoid conflict.\u003c\/p\u003e\u003cp\u003eUse a soft sand or fine gravel substrate and add plenty of driftwood, branches, rocks and hardy plants such as Amazon swords, Vallisneria and floating cover. These fish appreciate subdued lighting and areas of shade. Floating plants can help recreate the dappled light of their natural habitat, while also making them feel more secure.\u003c\/p\u003e\u003cp\u003eWater should be kept clean and stable with efficient filtration and regular partial water changes. Aim for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e 24–28°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH:\u003c\/strong\u003e 6.0–7.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral hardness:\u003c\/strong\u003e soft to moderately hard water\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eStrong current is not necessary; a gentle to moderate flow is ideal. As with most cichlids, avoid sudden changes in water chemistry. Quarantine new arrivals where possible, and allow juveniles time to settle before introducing tank mates.\u003c\/p\u003e\u003ch2\u003eFeeding Guide\u003c\/h2\u003e\u003cp\u003e\u003cem\u003eMesonauta insignis\u003c\/em\u003e is an omnivore with a preference for a varied, high-quality diet. In the aquarium, offer a mix of premium cichlid pellets or granules, frozen foods such as bloodworm, daphnia, mysis and brine shrimp, plus occasional vegetable matter. Blanched spinach, peas and spirulina-based foods can help provide balance and support digestion.\u003c\/p\u003e\u003cp\u003eFeed small portions once or twice daily, only as much as they will consume in a few minutes. Juveniles may benefit from slightly more frequent feeding, while adults should not be overfed. A varied diet helps maintain colour, condition and breeding readiness, and reduces the risk of nutritional deficiencies.\u003c\/p\u003e\u003cp\u003eAs with all live fish, food quality matters. Choose reputable, nutrient-rich foods and avoid relying on a single staple. A healthy diet combined with stable water conditions will help your flag cichlid thrive.\u003c\/p\u003e\u003ch2\u003eTank Mates \/ Compatibility\u003c\/h2\u003e\u003cp\u003eFlag cichlids are among the more community-friendly cichlids, but compatibility still depends on tank size, aquascape and the temperament of individual fish. They are generally best kept with calm, similarly sized species that will not nip fins or outcompete them at feeding time. Suitable companions can include larger tetras, peaceful catfish, Corydoras in appropriately warm water, peaceful rainbowfish and other non-aggressive South American species.\u003c\/p\u003e\u003cp\u003eThey can also work with some other gentle cichlids in a spacious aquarium, provided territories are well defined and the tank is large enough to prevent bullying. Avoid housing them with very boisterous fish, fin-nippers or highly territorial cichlids that may stress them. Small fish may be seen as food if the flag cichlid is well grown, so choose tank mates carefully.\u003c\/p\u003e\u003cp\u003eWhen introducing new fish, do so gradually and monitor behaviour closely. A well-structured aquarium with plenty of cover usually results in a calmer, more confident fish.\u003c\/p\u003e\u003ch2\u003eWhy Buy from Tropical Fish Co\u003c\/h2\u003e\u003cp\u003eAt Tropical Fish Co, we focus on healthy, well-conditioned livestock and careful packing to help your fish arrive in excellent condition. Your \u003cem\u003eMesonauta insignis\u003c\/em\u003e will be dispatched with attention to welfare, temperature control and safe transit, backed by our \u003cstrong\u003elive arrival guarantee\u003c\/strong\u003e. We also offer \u003cstrong\u003efast UK delivery\u003c\/strong\u003e to get your new fish to you quickly and securely.\u003c\/p\u003e\u003cp\u003eWe understand that buying live fish online requires trust, so we aim to make the process as straightforward as possible. From clear product information to reliable shipping and customer support, we’re here to help you succeed with your aquarium. If you’re looking for an elegant, peaceful cichlid with real character, \u003cem\u003eMesonauta insignis\u003c\/em\u003e is an excellent choice for a mature South American setup.\u003c\/p\u003e\u003cp\u003eOrder with confidence and enjoy one of the most distinctive and rewarding cichlids available for the home aquarium.\u003c\/p\u003e","brand":"Tropical Fish Co","offers":[{"title":"4 - 5 cm","offer_id":57446863798607,"sku":"KI23","price":42.99,"currency_code":"GBP","in_stock":true},{"title":"6 - 7 cm","offer_id":57451368415567,"sku":"KI25","price":51.99,"currency_code":"GBP","in_stock":true},{"title":"3-4 cm","offer_id":57560284660047,"sku":"KI22","price":26.99,"currency_code":"GBP","in_stock":false},{"title":"5-6 cm","offer_id":57560284692815,"sku":"KI24","price":46.99,"currency_code":"GBP","in_stock":false},{"title":"8-10 cm","offer_id":57560284725583,"sku":"KI26","price":62.99,"currency_code":"GBP","in_stock":false},{"title":"10-12 cm","offer_id":57560284758351,"sku":"KI27","price":103.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1408\/6735\/files\/mesonauta-insignis-s1-ki23.webp?v=1777837783","url":"https:\/\/tropical-fish-co.myshopify.com\/products\/mesonauta-insignis","provider":"Tropical Fish Co","version":"1.0","type":"link"}