Species description

Care, breeding and tankmates

Fish profile

Temperament

Aggressive

They exhibit a highly aggressive and dominant temperament. They will boldly challenge fish much larger than themselves for territory. They should be one of the last additions to an aggressive community aquarium.

Diet

Omnivore

They are aggressive omnivores that will readily accept nearly anything offered. Feed a varied diet of meaty frozen foods, high-quality pellets, and algae-based preparations. Dietary variety is essential to keep their immune system robust and coloration vivid.

Sex ratio

Solitary

It is best to keep them as a single specimen in home aquariums. Keeping multiple adults requires a massive tank to prevent fatal territorial disputes. A confirmed mated pair can be kept together but may terrorize other tank mates.

Feeding frequency

Twice daily

They require feeding two to three times per day. Frequent feedings help satisfy their fast metabolism and mitigate aggressive behavior. Always ensure that the food is completely consumed within a few minutes.

Bioload

The Green Sergeant produces a moderately high bioload due to its large adult size and hearty appetite. Strong filtration and an oversized protein skimmer are recommended to handle their waste. Regular water changes are critical to maintain optimal water parameters.

Flow

Strong

They favor high, turbulent water flow that simulates the energetic surge zones they naturally inhabit. Strong water movement helps keep them physically fit and active. Wavemakers are highly beneficial for recreating this dynamic environment.

Jump risk

No

Reproduction

Oviparous

Males prepare a nesting site on a hard surface and fiercely guard the adhesive eggs. They become incredibly aggressive toward any tank mate that approaches the nest. Raising the planktonic fry requires specialized setups completely separate from the main display.

Compatibility & tankmates

Aggressive

They are boisterous and aggressive, making them suitable only for tanks with similar rugged species. Do not house them with timid, peaceful, or delicate fish. They coexist well with larger wrasses, tangs, and predatory species.

Tank level

Middle

They are open-water swimmers that predominantly occupy the middle and upper levels. They are highly visible and constantly active throughout the day. They require ample swimming space combined with rocky retreats for sleeping.