Steel Blue Aphyosemion

Steel Blue Aphyosemion (Fundulopanchax gardneri) is native to specific tropical and subtropical freshwater systems. Captive-bred specimens at most LFS come from generations of farmed stock and are generally hardier and more colorful than wild-caught equivalents.

Steel Blue Aphyosemion requires a minimum of 10 gallons for healthy adults. The minimum is based on 2.5 inches adult size and territorial range. Plan a tank sized for adult footprint, HOB or canister filter rated 4-6x volume, dechlorinated water, appropriate temperature heater, and stocking-appropriate hardscape.

Steel Blue Aphyosemion prefers freshwater parameters: temperature 74-80°F, pH 6.5-7.5, GH 4-12 dGH, KH 3-8 dKH, ammonia + nitrite 0 ppm, nitrate under 20 ppm. Use dechlorinator on every water change.

Steel Blue Aphyosemion is a carnivore. Provide frozen mysis, brine, finely chopped seafood, and quality carnivore pellets. Live food triggers feeding response in stressed arrivals. Browse our food guides for product recommendations.

Steel Blue Aphyosemion works in community tanks with peaceful species in similar size class. Avoid mixing aggressive with passive species.

Steel Blue Aphyosemion reaches 2.5 inches at adulthood with a captive lifespan of 2-3 years with proper care.

Steel Blue Aphyosemion can be bred in dedicated breeding tanks with appropriate setup and water-chemistry triggers. Research the species-specific breeding requirements before attempting.

Steel Blue Aphyosemion is susceptible to standard freshwater diseases (ich, columnaris, fin rot, bacterial infections). Quarantine new Steel Blue Aphyosemion for 4 weeks before adding to display.

Steel Blue Aphyosemion is sold at LFS, online retailers, and direct from breeders. Browse live Steel Blue Aphyosemion from vetted Fast Aquatics vendors with carrier-tracked overnight shipping, climate-aware hold logic, and a 4-hour DOA window with photo-evidence claims.