Killifish
Discover the delicate beauty of Killifish, a favorite among aquarists for their peaceful behavior, compact size, and vibrant colors. Our premium killifish for sale include beginner-friendly species like Norman's Lampeye Killifish, Steel Blue Killifish, and the striking Clown Killifish. Whether you're creating a nano tank or expanding your aquascape, these eye-catching freshwater killifish make a perfect addition to peaceful community setups.
Carefully sourced and tank-raised, each killifish in our collection is selected for health, color intensity, and adaptability to the modern killifish aquarium.
Why Choose Killifish for Your Aquarium?
- Colorful & Distinctive: Bright neon eyes, bold body patterns, and elegant fins
- Peaceful & Small-Sized: Ideal for nano and planted aquariums
- Adaptable: Thrive in soft, slightly acidic water with gentle filtration
- Breeder-Friendly: Perfect for hobbyists interested in egg-laying species
- Low Bioload: Great for well-balanced aquariums with live plants
Popular Killifish Types
- Norman’s Lampeye Killifish (Poropanchax normani): A shoaling species with glowing blue eyes, best kept in groups of 6+ in heavily planted tanks.
- Steel Blue Killifish (Fundulopanchax gardneri): Known for their metallic blue bodies and red speckles, these hardy fish are active and easy to care for.
- Clown Killifish (Epiplatys annulatus): A striking nano species with horizontal stripes and a flame-colored tail, perfect for small, blackwater-style aquariums.
Each of these killifish species is beginner-friendly, visually stunning, and thrives in peaceful setups. Visit here for more Popular Killifish Types for Your Aquarium.
Killifish Care Guide
Killifish are fairly easy to care for when housed in the right environment:
- Tank Size: 5–10 gallons for small groups; ideally species-only or peaceful nano tanks
- Water Parameters: pH 6.0–7.0, temperature 72–78°F
- Aquascape: Dense aquatic plants, floating vegetation, and gentle lighting
- Feeding: Prefer live or frozen foods (baby brine shrimp, daphnia, bloodworms); may accept micro pellets
- Lid Required: All killifish are skilled jumpers, so remember to use a tight-fitting lid
Regular water changes and soft filtration will keep your killifish tank healthy and stable.
Killifish for Sale Online
Browse our premium collection of Killifish for sale and find the perfect addition to your freshwater aquarium. Visit Splashy Fish to buy them online or at our aquarium store in Virginia for more freshwater fish for sale, betta fish for sale, freshwater shrimp for sale, live aquatic plants for sale, and aquarium supplies.
Order now and bring home the beauty of Killifish today!
Killifish Frequently Asked Questions (FAQs)
Are Killifish aggressive?
No, killifish are not aggressive. Most freshwater killifish species are peaceful and do well in community aquariums with other small, calm tank mates. However, some males may show mild territorial behavior during breeding, especially in small tanks. Providing hiding spots and ample space helps reduce any potential stress or aggression.
Can I keep Killifish alone?
Yes, you can keep some killifish alone, especially males, but they generally thrive better in pairs or small groups. Species like Clown Killifish and Norman's Lampeye Killifish enjoy shoaling, and their social behaviors become more apparent when kept in small groups. Keeping multiple individuals also enhances their color and reduces stress.
Are Killifish easy to breed?
Yes, killifish are relatively easy to breed, especially species like the Steel Blue Killifish (Fundulopanchax gardneri). Most killifish lay eggs on fine-leafed plants, spawning mops, or moss. With clean water, a nutritious diet, and the right setup, many species will breed readily in captivity. Some, like annual killifish, may require egg drying and hatching cycles, while non-annual species breed continuously.
Testimonials
Let customers speak for us
Great plants selections lovely store
Bought a first aquarium for my 6 year old and was helped throughout the whole process on what to buy and what worked for our ideal low maintenance set up. The person there spent about 30 min with us throughout and we left with everything we needed to cycle the tank. We will be back to get the fish soon. Highly recommend! They have a very nice selection too of fish, plants, hardscaping, equipment, etc.
This snail arrived healthy and ready to work. He was smaller than I anticipated (less than 1/2 inch), but it just means I'll have him for longer. Great worker and very active.
I wanted a couple of snails for a little extra color and this guy was one of them. He's a great size (about an inch) and VERY active. He flies across the gravel so quickly and is voracious. He's cleaned a diatom bloom more in 3 days than a few nerites did in 2 weeks. He's also a beautiful robin's egg blue. Will definitely purchase more!
We just got our Red Eyes in today and thankfully they all arrived live and well! They made a safe trip from Splashy Fish Store in Virginia to California! Thank you!!!
This shop, which is hidden in a building that looks like a warehouse, has a good selection of fish and shrimp, and the staff are aquarium enthusiasts who are very helpful.
If you are a self proclaimed aqua-geek, then take a trip to check out this store. Super well stocked, clean and well maintained, and VERY helpful and kind staff available to answer questions. We drove out from Haymarket area, and it was well worth the drive! Thanks, Splashy Fish - see you soon!
The little Corys are happy (knock on wood!) and are doing great. I appreciate the store and their fish quality!
They are thriving and my wife love it
My Snails are so awesome and lively! I love watching them!
Anubias Congensis Aquatic Plant
My daughter and I have restarted my fish hobby recently and Splashy Fish had all the equipment and plants to get us back into building out our aquarium. The staff was super knowledgeable and friendly to entertain our questions and curiosity. We will be back often to check out the Shrimp Room and more plants!
Knowledgeable staff, healthy fish, accessories and equipment for all aquarium sizes!
Healthy and happy Hillstream. Unusual and interesting ! Good staff and quarantined fish
Ottos are doing fine and eating algae.
