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Maroon clownfish (Premnas biaculeatus)
AI illustration, not an ID reference

Maroon clownfish

Premnas biaculeatus

FishSaltwater

Care level
Moderate
Temperament
Aggressive
Reef safe
Yes
Recommended tank
200 L
Maximum size
15 cm
Temperature
24–27 °C
pH
8–8.4
Diet
Omnivore

Care at a glance

The maroon clownfish is the largest and by far the most combative clownfish: deep red-brown with white or gold bars and a small spine on the cheek plate. As in all clownfish the dominant individual becomes the female, and here that female can grow twice the size of the male.

An established pair defends its corner of the reef fiercely and drives off other clownfish, and sometimes even your hand. So never keep two adults of the same size together, and do not combine it with other clownfish species.

Good to know

  • Territorial

Best not combined with

Related species

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Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.