Bluefin Killifish
Lucania goodei
What you need to keep a Bluefin Killifish
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pH
6.5–8
Temperature
18–24 °C
Max size
5 cm
Min tank
45 L
Where to buy
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Overview
What to know before you buy.
A North American killifish with electric blue and red finnage on displaying males. Tolerant of cooler water and happiest in a densely planted tank with gentle flow.
Care guide
Keeping Bluefin Killifish healthy in a South African setup.
Tank setup
A minimum 45L aquarium suits Bluefin Killifish. Provide hiding spots and stable, well-filtered water; it suits a community setup.
Water parameters
Keep pH 6.5–8 and 18–24°C. Stable parameters matter more than chasing perfect numbers; acclimate new arrivals slowly.
Feeding
Micropredator — live and frozen foods. Feed small amounts it clears in a couple of minutes, and vary the diet.
Behaviour
Peaceful, males display constantly. Watch it at feeding time and at lights-out to see its real temperament in your tank.
Tankmates
Choose tankmates of similar size and temperament with the same water needs. Avoid fin-nippers and anything large enough to eat it.
Breeding
Breeding success with Bluefin Killifish depends on the line and water chemistry; ask your shop about proven pairs.
Community photos
From hobbyists across SA.