CheckMyFishTank

Clown Rasbora care

Rasbora kalochroma · Freshwater · Intermediate level care

Clown Rasbora, painted illustration

A larger rasbora with attractive spots, best in a quiet tank.

Smallest tank55 gallons
Adult size4 inches
Temperature73 to 81°F
pH5 to 7
GroupA group of 8 or more
TemperamentPeaceful
SwimsMiddle of the tank
Lives4 to 5 years
Watch for: They like soft, slightly acidic water and calm tankmates.

Feeding

Twice a day. A small pinch they finish in about 2 minutes, a little more for bigger fish. Flakes, small pellets, frozen foods.

Jumps. Keep a tight lid on the tank.

Good tank mates

Fish that pass every check with Clown Rasbora in a 110 gallon tank: same water, overlapping temperature, nobody gets eaten and no bullies.

Do not mix with

  • Tinfoil Barb: Tinfoil Barb grows big enough to eat Clown Rasbora.
  • White Cloud Mountain Minnow: White Cloud Mountain Minnow and Clown Rasbora need different water temperatures.
  • Discus: Discus and Clown Rasbora need different water temperatures.
  • Convict Cichlid: Convict Cichlid is aggressive and will bully peaceful Clown Rasbora.
  • Oscar: Oscar grows big enough to eat Clown Rasbora.
  • Jack Dempsey: Jack Dempsey is aggressive and will bully peaceful Clown Rasbora.
  • Green Terror: Green Terror grows big enough to eat Clown Rasbora.
  • Red Zebra Cichlid: Red Zebra Cichlid is aggressive and will bully peaceful Clown Rasbora.

Questions

What size tank does a Clown Rasbora need?

At least 55 gallons for a group of 8. Adults grow to about 4 inches, so plan for the adult size, not the size at the store.

What temperature does a Clown Rasbora like?

73 to 81 degrees Fahrenheit, with a pH of about 5 to 7. A steady temperature matters more than hitting one exact number.

How many Clown Rasbora should I keep together?

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

What do Clown Rasbora eat?

Flakes, small pellets, frozen foods. Feed twice a day: a small pinch they finish in about 2 minutes, a little more for bigger fish.

Sources

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