What size tank does a Red Striped Killifish need?

Red Striped Killifish needs a minimum of 10 gallons, with 15 gallons recommended. They are middle swimmers.

Is Red Striped Killifish good for beginners?

Red Striped Killifish is rated "advanced" difficulty (3/5). Suitable for intermediate fishkeepers.

What fish are compatible with Red Striped Killifish?

Red Striped Killifish is peaceful. Compatible tank mates include other peaceful fish with similar water parameters (pH 6-7, temp 68-77°F).

Red Striped Killifish

Aphyosemion striatum

Family: Aplocheilidae • Origin: Various

Red Striped Killifish (Aphyosemion striatum) is a peaceful killifish reaching 2 inches. Can be kept singly. Minimum tank: 10 gallons.

Min Tank

10 gal

Max Size

Temperature

68-77°F

6-7

Lifespan

2 years

School Size

Solo OK

Swim Level

middle

Hardness

5-15 dGH

peacefuladvancedcarnivore

Is Red Striped Killifish Right for Your Tank?

Red Striped Killifish is a moderate-care fish rated "advanced" (3/5). Suitable for hobbyists with some experience who can maintain stable water parameters. At just 10 gallons minimum, they work well in nano tanks and smaller setups.

With a peaceful temperament, Red Striped Killifish makes a great community fish. They coexist well with other non-aggressive species of similar size. Expected lifespan: 2 years with proper care.

Common Mistakes with Red Striped 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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Skipping the quarantine period

Even healthy-looking fish can carry parasites or disease. Quarantine new Red Striped Killifish for 2–4 weeks in a separate tank before adding to your main aquarium.