Species description

Care, breeding and tankmates

Fish profile

Temperament

Aggressive

They exhibit a bold, aggressive, and highly territorial temperament. They act much larger than their size and will not back down from a fight, even with larger fish. Their feisty nature requires careful planning when choosing tank mates, but they are fascinating to watch.

Diet

Carnivore

Their diet should be strictly carnivorous, reflecting their natural predatory habits. Offer a varied mix of frozen mysis shrimp, vitamin-enriched brine shrimp, and chopped marine meats. High-quality carnivore pellets can be offered but should be soaked first and used alongside frozen foods.

Sex ratio

Solitary

They should strictly be kept as single specimens to avoid lethal conspecific aggression. If two are placed in the same tank, they will almost certainly fight until one is dead. Only confirmed mated pairs should be kept together, and only by experienced aquarists.

Feeding frequency

Twice daily

Feed them two to three times daily to support their energetic lifestyle and high metabolism. Ensure that the food offered is consumed within a few minutes to avoid polluting the tank. Consistent, frequent feedings can also help to slightly reduce their aggressive tendencies.

Bioload

They have a moderate bioload that is easily managed with standard reef filtration equipment. Their carnivorous diet necessitates feeding protein-rich foods, which can degrade water quality if not fully consumed. Regular protein skimming and weekly water changes will maintain optimal water conditions.

Flow

Strong

They thrive in moderate to strong water flow, which mimics the surge zones of natural reefs. The flow keeps the water well-oxygenated and encourages their natural, active swimming behavior. Providing areas of lower flow behind rocks allows them to rest when needed.

Jump risk

Yes

Like other dottybacks, they are excellent jumpers and present a significant escape risk. A tight-fitting lid or fine mesh canopy is absolutely essential for keeping them safely in the aquarium. They are most likely to jump when startled, during lights out, or when chased by other fish.

Reproduction

Not bred in captivity

Captive breeding is rare and presents a significant challenge due to the difficulty of rearing the fry. They are cave spawners, with the male taking full responsibility for guarding and aerating the egg mass. The resulting larvae are extremely small and require specialized, microscopic live foods to survive.

Compatibility & tankmates

Aggressive

This is a semi-aggressive species that will strongly defend its chosen territory in the rocks. They are known to bully smaller or more timid fish, such as firefish and small gobies. They are best kept with robust tank mates like tangs, large angelfish, or sturdy damselfish.

Tank level

Middle/Bottom

They are closely tied to the rockwork and primarily inhabit the lower to middle levels of the tank. They establish a specific cave or crevice as their home and fiercely patrol the area around it. They rarely venture into the open, upper areas of the water column.