Aquarium species profile

Maroon Clownfish

Premnas biaculeatus · Indo-Pacific (Indonesia, Northern Australia)

Minimum tank55 gal

Adult size6"

Care levelModerate

TemperamentAggressive

Temperature74–82°F

pH range8.1–8.4

Diet

Omnivore – marine pellets, frozen mysis, krill, brine shrimp

Compatible tank mates

Large robust reef fish; tangs, large wrasses, large angels

Tank mates to avoid

Other clownfish, small passive fish, anything in their territory

Care notes

Largest and most aggressive clownfish. Distinctive cheek spines. Pairs with bubble-tip anemone. Females dominate and can be brutal to mismatched mates.

Check the whole aquarium. Tank size alone does not establish compatibility. Confirm adult size, water overlap, social grouping, territory, diet, and the individual animals before stocking.

Check compatibility in Fishician