Discover killifish for sale, some of the most colorful fish in the freshwater hobby. From golden wonder killifish and gardneri killifish to lyretail, clown and annual Nothobranchius species, killies pack jewel-like color into small, easy-to-house bodies. Buy killifish online at Live Fish Store and we ship overnight to your door.
Why buy killifish from Live Fish Store
- Healthy, vivid fish: selected for strong color, full fins and active feeding.
- Overnight shipping: live orders ship via FedEx Priority Overnight or UPS Next Day Air.
- Live arrival guarantee: every killifish is covered from our door to yours.
- Free shipping on $80+: qualifying aquatic-life orders ship free within the USA.
Choosing the right killifish for your tank
Most killifish are small and content in 10 to 20 gallon tanks as a pair or a male with several females. Many prefer soft, slightly acidic water at roughly 68 to 78°F, with dim lighting, floating plants and dark substrate that make their colors glow. A tight-fitting lid is non-negotiable: killifish are expert jumpers.
Killies are carnivores that do best on live and frozen foods such as brine shrimp, daphnia, bloodworms and blackworms, though many strains accept quality flake and micro pellets. Males can be aggressive toward each other, so keep one male per small tank. Larger species like golden wonder killifish eat very small tankmates, while peaceful clown killies and lampeyes fit nano community tanks. Annual killifish live fast, breed in peat and have naturally short lifespans.
Shipping and live arrival guarantee
Killifish ship overnight via FedEx Priority Overnight or UPS Next Day Air, carefully packed for the trip. If a fish arrives DOA, report it within 2 hours of delivery for store credit or a replacement under our live arrival guarantee. Qualifying aquatic-life orders of $80 or more ship free within the USA.
Frequently asked questions
Are killifish good for beginners?
Some are. Golden wonder, gardneri and lyretail killies are hardy and adaptable; annual species suit hobbyists ready for a breeding project.
What tank size do killifish need?
A pair or trio of most species is happy in 10 gallons; larger species and groups do better in 20 gallons or more, always with a secure lid.
Can killifish live in a community tank?
Peaceful species mix well with small tetras, rasboras and corydoras. Avoid keeping killies with fin nippers or with fish small enough to be eaten.
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