{"product_id":"small-tropical-aquarium-fish-for-sale-uk-myers-pearlfish-cynolebias-myerfi-3080","title":"Myers' Pearlfish (Cynolebias myersi) — 3-4cm","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eMyers' Pearlfish\u003c\/strong\u003e (\u003cem\u003eCynolebias myersi\u003c\/em\u003e) is a rare, beautifully patterned seasonal killifish native to seasonal freshwater pools and wetlands in South America, likely Brazil. Reaching just 3cm in length, this peaceful species is prized for its compact size and fascinating breeding behavior. As an annual killifish adapted to temporary habitats that dry seasonally, \u003cem\u003eCynolebias myersi\u003c\/em\u003e has a compressed life cycle and unique reproductive biology. Available for sale UK from Tropical Fish Co, this rare species rewards experienced aquarists seeking a compact, specialized species with captivating patterns and behavior.\u003c\/p\u003e\u003ch2\u003eAppearance and Coloration\u003c\/h2\u003e\u003cp\u003eMyers' Pearlfish displays exquisite pearl-like colouration with a compact, slender body adorned in intricate patterns of blue, green, and yellow with iridescent pearly spots scattered across the scales. Males are intensely coloured with pronounced finnage and a bold presence, especially during courtship. The fins feature delicate patterning and iridescent highlights that shimmer under subdued lighting. Females are smaller, plumper, and more subdued in colour with shorter finnage. In a planted tank with dark substrate, the pearly spots become even more visible and eye-catching.\u003c\/p\u003e\u003ch2\u003eNatural Habitat\u003c\/h2\u003e\u003cp\u003e\u003cem\u003eCynolebias myersi\u003c\/em\u003e inhabits seasonal freshwater pools and wetlands in South America, though the exact locality is not well documented in trade sources. These temporary water bodies fill with water during the wet season and dry completely during the dry season. The water is typically soft, slightly acidic, and well-vegetated, with a substrate of mud and organic debris. During the wet season, adults spawn rapidly; as pools dry, adults perish while eggs remain dormant in dried substrate, hatching when rains return months later.\u003c\/p\u003e\u003ch2\u003eAquarium Setup\u003c\/h2\u003e\u003cp\u003eA minimum 20-litre aquarium is sufficient for a pair or small group of Myers' Pearlfish. Use a fine sand or soft peat substrate to replicate the natural spawning medium. Include live plants such as \u003cem\u003eCryptocoryne\u003c\/em\u003e, Java moss, and floating species like \u003cem\u003eSalvinia\u003c\/em\u003e or \u003cem\u003eLimnobium\u003c\/em\u003e. Provide spawning mops or peat moss for egg deposition. Lighting should be subdued, and filtration gentle to avoid strong currents. A secure, tight-fitting lid is essential. Maintain excellent water quality and warm temperatures (23-28°C) to replicate natural conditions.\u003c\/p\u003e\u003cdiv class=\"info-box\"\u003e\n\u003ch3\u003eWater Parameters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e 23-28°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH:\u003c\/strong\u003e 6.0-6.8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e Very soft (2-8 dGH)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmmonia\/Nitrite:\u003c\/strong\u003e 0 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNitrate:\u003c\/strong\u003e \u0026lt;20 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003ch2\u003eFeeding and Diet\u003c\/h2\u003e\u003cp\u003eAs a carnivore, \u003cem\u003eCynolebias myersi\u003c\/em\u003e requires a varied, protein-rich diet to maintain health and colour. Offer small live and frozen meaty foods such as bloodworms, daphnia, brine shrimp, and insect larvae daily. High-quality carnivorous prepared foods may be accepted after acclimation, but live and frozen foods are preferred for conditioning and breeding. Feed small portions twice daily, removing uneaten food promptly to maintain pristine water quality. Variety and freshness are critical for optimal health and vibrant colouration.\u003c\/p\u003e\u003ch2\u003eBehaviour and Temperament\u003c\/h2\u003e\u003cp\u003eMyers' Pearlfish is a peaceful species that spends most of its time exploring the lower and middle water column. Males may display to each other during courtship with flared fins and vibrant colour displays, but serious aggression is rare. These fish have a naturally short lifespan of typically 6-12 months, reflecting their annual biology. They appreciate a dimly lit aquarium with plenty of cover. They are not competitive feeders, so avoid housing them with boisterous or fast-moving species.\u003c\/p\u003e\u003ch2\u003eSuitable Tank Mates\u003c\/h2\u003e\u003cp\u003e\u003cem\u003eCynolebias myersi\u003c\/em\u003e is best kept species-only to accommodate its unique breeding biology and short lifespan. If tankmates are used, only very small, peaceful, non-competitive fish with identical water needs and no risk of outcompeting the killifish should be considered. Avoid large or boisterous fish, aggressive species, fast-feeding community fish, fin-nippers, and very small shrimp or fry. A calm, quiet environment is essential for this delicate annual killifish to thrive.\u003c\/p\u003e\u003cdiv class=\"tip-box\"\u003e\n\u003cstrong\u003eTop Tip:\u003c\/strong\u003e Best kept in a quiet, species-focused setup with subdued lighting and excellent water quality—this is a specialist fish with a short lifespan and breeding strategy tied to seasonal conditions.\u003c\/div\u003e\u003ch2\u003eBreeding\u003c\/h2\u003e\u003cp\u003eThis seasonal killifish is typically bred by providing a soft, shallow spawning substrate for egg deposition. Condition a pair or small group with high-quality live foods, then provide spawning media such as peat moss or fine sand. Eggs often require a drying\/incubation period before hatching, depending on the strain and conditions. Collect eggs carefully and store in slightly damp peat in a sealed container at warm room temperature. Fry hatch when the peat is re-flooded and require infusoria or newly hatched brine shrimp. Breeding success depends on careful egg management and precise water conditions.\u003c\/p\u003e\u003ch2\u003eWhy Buy from Tropical Fish Co\u003c\/h2\u003e\u003cp\u003eTropical Fish Co is a trusted UK supplier of rare and specialist tropical fish, including hard-to-find annual killifish species like \u003cem\u003eCynolebias myersi\u003c\/em\u003e. We guarantee healthy, well-conditioned stock, expert care advice, and secure nationwide delivery. Every fish is quarantined and inspected before dispatch, ensuring you receive only the finest specimens. Whether you're setting up a dedicated killifish tank or adding a rare species to your collection, Tropical Fish Co offers unmatched quality and customer service. Order online today and experience the beauty of South American annual killifish.\u003c\/p\u003e","brand":"Tropical Fish Co","offers":[{"title":"Default Title","offer_id":57427503350095,"sku":"3080","price":5.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1408\/6735\/files\/myers-pearlfish-cynolebias-myersi-3-4cm-hero-driftwood-3080_1444d326-b2eb-4ef7-86fd-389860ef3a3b.webp?v=1776549451","url":"https:\/\/tropical-fish-co.myshopify.com\/products\/small-tropical-aquarium-fish-for-sale-uk-myers-pearlfish-cynolebias-myerfi-3080","provider":"Tropical Fish Co","version":"1.0","type":"link"}