Care
In the wild, Fijian Blue Damselfish may be found in small groups within sheltered lagoons and offshore reefs, feeding mainly on zooplankton in the water column, to depths of 10m (33ft). Despite the dazzling beauty and small adult size of this fish, it is one of the most aggressive and territorial damselfish known - it's belligerence often increasing further with age and maturity (particularly in male fish). However, it should not harm invertebrates so can be maintained safely in reef aquaria - but only where there are no small, docile fish species present, such as blennies, cardinalfish, firefish, or gobies. Ideal companions will be larger and moderately aggressive e.g. reef-safe triggerfish, tangs, and sizeable angelfish. The tank should be spacious with plenty of hiding places amongst the rockwork. It is advisable to keep either a single specimen or a known compatible male-female pair; larger groups are only likely to work in the most voluminous of systems. May also be seen on sale as the Southseas Devil.
Feeding
Offer a varied diet consisting of small frozen foods such as Spirulina-enriched brineshrimp, Mysis shrimp and finely chopped krill, plus marine flake food and herbivore rations. Feed small amounts 3 times per day.
Breeding
This species has not been bred in the home aquarium, but they are known to form distinct pairs in the wild when spawning. Male damselfish typically establish a territory and prepare surfaces of rubble or coral for females to deposit their adhesive, demersal eggs. Once the eggs are laid the male will quickly fertilize them and aggressively defend them from any intruders. He will also aerate the eggs until they hatch.
