What size tank does a Gardneri Killifish need?

Gardneri Killifish needs a minimum of 10 gallons, with 15 gallons recommended. They are top swimmers.

Is Gardneri Killifish good for beginners?

Gardneri Killifish is rated "intermediate" difficulty (2/5). Great for beginners.

What fish are compatible with Gardneri Killifish?

Gardneri Killifish is semi-aggressive. Compatible tank mates include other semi-aggressive fish with similar water parameters (pH 6-7, temp 72-79°F). Give adequate territory space.

Gardneri Killifish

Fundulopanchax gardneri

Family: Nothobranchiidae • Origin: Various

Gardneri Killifish (Fundulopanchax gardneri) is a semi-aggressive killifish reaching 2.5 inches. Can be kept singly. Minimum tank size: 10 gallons.

Min Tank

10 gal

Max Size

2.5"

Temperature

72-79°F

6-7

Lifespan

4 years

School Size

Solo OK

Swim Level

top

Hardness

5-15 dGH

semi-aggressiveintermediatecarnivore

Is Gardneri Killifish Right for Your Tank?

Gardneri Killifish is an excellent choice for beginners — rated "intermediate" difficulty (2/5). They're hardy, forgiving of minor water parameter fluctuations, and generally easy to feed. At just 10 gallons minimum, they work well in nano tanks and smaller setups.

Gardneri Killifish is semi-aggressive — they can live with others but may bully smaller or slower fish. Choose tank mates carefully. They are territorial — provide adequate hiding spots and maintain enough space to reduce aggression. Expected lifespan: 4 years with proper care.

Common Mistakes with Gardneri Killifish

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Putting them in a tank under 10 gallons

While 10 gallons is the minimum, nano tanks require more frequent water changes and leave less room for error. A slightly larger tank (15 gal) is much more forgiving.

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Housing with peaceful nano fish

Gardneri Killifish is semi-aggressive and territorial — small, peaceful species like neon tetras, endlers, or celestial pearl danios will be stressed, bullied, or eaten. Choose tank mates that can hold their own.