Killifish Aquarium Care Guide

Keeping Killifish in an aquarium requires the right conditions.

Aquarium Information

• Care level: intermediate
• Temperament: peaceful
• Diet: carnivore
• Minimum tank size: 5 gallons
• Compatibility: Generally peaceful with other small, non-aggressive fish. Best kept in species-specific tanks or with other killifish species. Avoid fin-nippers or overly boisterous tankmates.
• Special requirements: Many species require specific water parameters, often soft and acidic. Annual killifish require a substrate for egg-laying (e.g., peat moss) and specific conditions for egg incubation. Live or frozen foods are preferred. Some species are jumpers, so a tight-fitting lid is essential.

Water parameters

Temperature

68-78°F (20-26°C)

pH level

6.0-7.5

Hardness

5-15 dGH

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