Chrysiptera rex, commonly known as the regal damselfish, is a striking addition to any marine aquarium. Renowned for its vivid blue and yellow colouring, this species is both hardy and active, making it suitable for hobbyists with some experience in marine fish care.
Care Level: Moderate. Chrysiptera rex requires stable water conditions and a well-maintained tank.
Temperament and Compatibility: This damselfish is territorial and can be aggressive, especially towards conspecifics or similar-shaped fish. It is best kept singly or as part of a carefully planned community with robust tank mates. Avoid housing with very passive or slow-moving species.
Diet: Omnivorous. Feed a varied diet including high-quality marine flakes, pellets, frozen mysis shrimp, brine shrimp, and finely chopped seafood to ensure optimal health and colouration.
Minimum Tank Size: A minimum of 75 litres (20 gallons) is recommended to provide adequate swimming space and reduce territorial aggression.
Lighting and Water Flow: Standard reef aquarium lighting is suitable. Moderate water flow mimicking natural reef currents is ideal.
Placement: Provide plenty of live rock for hiding and territory establishment. Position the fish in mid to lower levels of the tank.
Origin: Not Provided.
Maximum Size: Approximately 8 cm (3 inches).
Chrysiptera rex is a popular choice for marine aquarists seeking a colourful, active fish that adds vibrancy and personality to reef or fish-only setups. Regular monitoring of tank dynamics and water quality will ensure a thriving specimen.

