What size tank does a Aphyosemion Australe need?

Aphyosemion Australe needs a minimum of 10 gallons, with 15 gallons recommended. They are middle swimmers.

Is Aphyosemion Australe good for beginners?

Aphyosemion Australe is rated "intermediate" difficulty (2/5). Great for beginners.

What fish are compatible with Aphyosemion Australe?

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

Aphyosemion Australe

Aphyosemion australe

Family: Aplocheilidae • Origin: Various

Aphyosemion Australe (Aphyosemion australe) is a peaceful killifish reaching 2.5 inches. Can be kept singly. Minimum tank size: 10 gallons.

Min Tank

10 gal

Max Size

2.5"

Temperature

68-77°F

6-7

Lifespan

4 years

School Size

Solo OK

Swim Level

middle

Hardness

5-15 dGH

peacefulintermediatecarnivore

Is Aphyosemion Australe Right for Your Tank?

Aphyosemion Australe 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.

With a peaceful temperament, Aphyosemion Australe makes a great community fish. They coexist well with other non-aggressive species of similar size. Expected lifespan: 4 years with proper care.

Common Mistakes with Aphyosemion Australe

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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 Aphyosemion Australe for 2–4 weeks in a separate tank before adding to your main aquarium.