CheckMyFishTank

Pygmy Corydoras care

Corydoras pygmaeus · Freshwater · Beginner level care

Pygmy Corydoras, painted illustration

A tiny cory that swims in the middle of the tank as well as the bottom.

Smallest tank10 gallons
Adult size1 inches
Temperature72 to 79°F
pH6 to 7.5
GroupA group of 8 or more
TemperamentPeaceful
SwimsAll levels
Lives3 to 5 years
Watch for: Their mouths are tiny, so crush or soak sinking foods.

Feeding

Twice a day. A small pinch they finish in about 2 minutes. Crushed sinking pellets, baby brine shrimp, micro foods.

Good tank mates

Fish that pass every check with Pygmy Corydoras in a 40 gallon tank: same water, overlapping temperature, nobody gets eaten and no bullies.

Do not mix with

  • Silver Dollar: Silver Dollar grows big enough to eat Pygmy Corydoras.
  • Tinfoil Barb: Tinfoil Barb grows big enough to eat Pygmy Corydoras.
  • Paradise Fish: Paradise Fish grows big enough to eat Pygmy Corydoras.
  • German Blue Ram: German Blue Ram and Pygmy Corydoras need different water temperatures.
  • Angelfish: Angelfish grows big enough to eat Pygmy Corydoras.
  • Discus: Discus and Pygmy Corydoras need different water temperatures.
  • Convict Cichlid: Convict Cichlid grows big enough to eat Pygmy Corydoras.
  • Oscar: Oscar grows big enough to eat Pygmy Corydoras.

Questions

What size tank does a Pygmy Corydoras need?

At least 10 gallons for a group of 8. Adults grow to about 1 inches, so plan for the adult size, not the size at the store.

What temperature does a Pygmy Corydoras like?

72 to 79 degrees Fahrenheit, with a pH of about 6 to 7.5. A steady temperature matters more than hitting one exact number.

How many Pygmy Corydoras should I keep together?

Keep 8 or more. They feel safe in a group and show better color and behavior.

What do Pygmy Corydoras eat?

Crushed sinking pellets, baby brine shrimp, micro foods. Feed twice a day: a small pinch they finish in about 2 minutes.

Sources

Checked against these sources on 2026-11-10. When sources disagree we use the safer number.