Species description

Care, breeding and tankmates

Fish profile

Temperament

Territorial

They possess a bold, highly assertive, and fiercely territorial temperament. They view themselves as the boss of the rockwork and will challenge fish much larger than themselves. Their intense personality makes them an engaging but demanding addition to a semi-aggressive community tank.

Diet

Carnivore

As active predators, their diet must consist of varied, meaty marine foods. Offer them frozen mysis shrimp, enriched brine shrimp, and finely chopped seafood like squid or clam. While they will accept carnivore pellets, these should only be a supplement to a primarily frozen diet.

Sex ratio

Solitary

They must be kept individually to prevent severe and often fatal conspecific aggression. Two unsexed individuals in the same tank will fight continuously until one is eliminated. Bonded pairs can be kept together, but only in very large systems by experienced aquarists.

Feeding frequency

Twice daily

They require feeding two to three times a day to maintain their energy and health. Frequent feeding can also help slightly reduce their inherent territorial aggression. Ensure they consume all offered food quickly to prevent it from decaying and degrading water quality.

Bioload

The bioload of this fish is moderate and manageable with standard marine filtration. Their carnivorous diet leads to high-protein waste, which requires an efficient protein skimmer to process effectively. Regular water changes and substrate vacuuming will keep nutrient levels in check.

Flow

Moderate

They favor a moderate to strong water flow, which mimics the natural currents of their reef habitats. Good circulation keeps the water oxygenated and encourages their natural darting behaviors. Provide plenty of rockwork so they can find calmer areas when they need to rest.

Jump risk

Yes

Like their relatives, they are extreme jump risks and will easily leap from an uncovered tank. A secure, tight-fitting mesh screen or canopy is a strict requirement for housing this species. Startling them or housing them with overly aggressive tank mates increases the likelihood of jumping.

Reproduction

Oviparous

Captive breeding is possible but involves significant challenges. The male prepares a cave nest and aggressively guards the egg mass until the larvae hatch. Raising the microscopic fry requires a dedicated setup and the cultivation of specialized live foods like rotifers.

Compatibility & tankmates

Highly aggressive

They are highly territorial and can be exceptionally aggressive towards smaller or peaceful fish. They are known to ruthlessly attack and even kill ornamental shrimp and small bottom-dwellers. They are only suitable for tanks with robust, semi-aggressive companions like larger wrasses or tangs.

Tank level

Middle/Bottom

They are bottom to mid-level dwellers, intimately tied to the live rock structure. They establish a specific cave as their territory and fiercely defend it from intruders. They seldom venture into the open, upper third of the aquarium.