Calloplesiops altivelis | M

Calloplesiops altivelis, often referred to as the Comet or Marine Basslet, is a captivating marine fish prized for its distinctive appearance and elusive behaviour. This medium-sized species is best suited to experienced hobbyists who can provide a stable, mature aquarium environment.

Appearance and Behaviour: The Comet displays a striking pattern of dark body coloration with white spots and a large false eye spot near the tail, which helps deter predators. It is a nocturnal and shy species, often hiding during the day among rockwork and crevices.

Tank Requirements: A minimum tank size of 120 litres is recommended to accommodate its territorial nature and provide ample hiding places. The aquarium should be well-established with plenty of live rock to mimic its natural reef habitat.

Diet: Calloplesiops altivelis is carnivorous, feeding primarily on small crustaceans and fish. In captivity, it accepts a diet of frozen or live meaty foods such as mysis shrimp, brine shrimp, and finely chopped seafood. Regular feeding 2-3 times per day is advised to maintain health.

Compatibility and Temperament: This species is generally peaceful but may be territorial towards similar-sized or shaped fish. It is best kept with other non-aggressive tank mates. Avoid housing with very small fish or invertebrates that may be seen as prey.

Water Parameters and Care: Maintain stable marine conditions with temperature between 24-27°C, salinity at 1.023-1.025 SG, and pH 8.1-8.4. Moderate water flow and subdued lighting replicate its natural environment and reduce stress.

Overall, Calloplesiops altivelis is a fascinating addition to a mature marine aquarium, offering unique behaviour and visual appeal for dedicated marine aquarists.