Brilliant Rasbora care

A calm rasbora with a bold stripe.

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 Brilliant Rasbora in a 60 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 Brilliant Rasbora.
• White Cloud Mountain Minnow: White Cloud Mountain Minnow and Brilliant Rasbora need different water temperatures.
• German Blue Ram: German Blue Ram and Brilliant Rasbora need different water temperatures.
• Discus: Discus and Brilliant Rasbora need different water temperatures.
• Convict Cichlid: Convict Cichlid is aggressive and will bully peaceful Brilliant Rasbora.
• Oscar: Oscar grows big enough to eat Brilliant Rasbora.
• Jack Dempsey: Jack Dempsey is aggressive and will bully peaceful Brilliant Rasbora.
• Green Terror: Green Terror grows big enough to eat Brilliant Rasbora.

Questions

What size tank does a Brilliant Rasbora need?

At least 30 gallons for a group of 6. Adults grow to about 3.5 inches, so plan for the adult size, not the size at the store.

What temperature does a Brilliant Rasbora like?

73 to 79 degrees Fahrenheit, with a pH of about 5.5 to 7.5. A steady temperature matters more than hitting one exact number.

How many Brilliant Rasbora should I keep together?

Keep 6 or more. They feel safe in a group and show better color and behavior.

What do Brilliant 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.

• theaquariumwiki.com
• seriouslyfish.com