Species description

Care, breeding and tankmates

Fish profile

Temperament

Territorial

They are notoriously aggressive and territorial, particularly as they mature. They will aggressively bully smaller or more docile fish. They must be added to the aquarium last to prevent them from claiming the entire tank.

Diet

Omnivore

This species is a voracious omnivore that accepts nearly all aquarium foods. Their diet should be a mix of high-quality marine flakes, pellets, and frozen meaty foods. Including algae sheets or spirulina will keep their immune system strong.

Sex ratio

Solitary

They can be kept in small schools when young, but adults become increasingly intolerant of each other. In a home aquarium, keeping a single specimen or a confirmed pair is best. Only massive tanks can support a mature group without constant infighting.

Feeding frequency

Twice daily

Feed them two to three times daily to keep up with their fast metabolism. Regular feeding helps curb their aggressive tendencies toward tank mates. Ensure portions are large enough to satisfy them but consumed within minutes.

Bioload

High

The Indo-Pacific Sergeant generates a moderate bioload due to its active nature and hearty appetite. Efficient protein skimming and regular water changes are necessary for maintaining water quality. They are messy eaters, so strong filtration is highly recommended.

Flow

Strong

They prefer strong, turbulent water flow mimicking the surge zones of tropical reefs. High circulation encourages their natural schooling and feeding behaviors. Strategic placement of wavemakers will provide the dynamic environment they require.

Jump risk

No

Reproduction

Oviparous

They are egg layers that attach their adhesive clutches to hard substrates. The male aggressively defends the nest site from all perceived threats. While spawning is common, rearing the tiny larvae requires specialized plankton cultures.

Compatibility & tankmates

Aggressive

They are highly territorial and robust, suitable only for aggressive or semi-aggressive setups. Do not house them with delicate or slow-moving species. They can hold their own against tangs, triggerfish, and large angelfish.

Tank level

Middle

They actively patrol the upper and middle levels of the water column. They are bold swimmers that spend most of their time in open water. They still require rocky structures for shelter and territorial boundaries.