What size tank does a Pygmy Corydoras need?

Pygmy Corydoras needs a minimum of 5 gallons, with 10 gallons recommended. They are middle swimmers. Keep in groups of 8+.

Is Pygmy Corydoras good for beginners?

Pygmy Corydoras is rated "beginner" difficulty (2/5). Great for beginners.

What fish are compatible with Pygmy Corydoras?

Pygmy Corydoras is peaceful. Compatible tank mates include other peaceful fish with similar water parameters (pH 6-7.5, temp 72-79°F).

Pygmy Corydoras

Corydoras pygmaeus

Family: Callichthyidae • Origin: South America

Pygmy Corydoras are the smallest cory species. Unlike other corys, they hover in midwater in a school rather than staying on the bottom.

Min Tank

5 gal

Max Size

Temperature

72-79°F

6-7.5

Lifespan

4 years

School Size

Swim Level

middle

Hardness

2-12 dGH

peacefulbeginneromnivoreschooling

Is Pygmy Corydoras Right for Your Tank?

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

With a peaceful temperament, Pygmy Corydoras makes a great community fish. They coexist well with other non-aggressive species of similar size. This is a schooling species — keep at least 8 together, or they may become stressed and display abnormal behavior. Expected lifespan: 4 years with proper care.

Common Mistakes with Pygmy Corydoras

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Keeping fewer than 8 together

Pygmy Corydoras is a schooling species — they need a group of at least 8 to feel secure. Lone or paired individuals become stressed, hide constantly, and may develop health issues or aggression.

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Putting them in a tank under 5 gallons

While 5 gallons is the minimum, nano tanks require more frequent water changes and leave less room for error. A slightly larger tank (10 gal) is much more forgiving.