Care
The Pearlscale Butterflyfish is known from clear coastal/outer reef slopes and drop-offs at depths between 6-50 m (20-164ft). These fish are often observed in pairs, feeding on small benthic invertebrates and algae, around areas colonized with staghorn corals. This is a moderately hardy species that usually acclimatizes well to aquarium life if kept in peaceful surroundings. However, it is not regarded as completely reef-safe on account of its fondness for feeding on many soft corals and other small invertebrates. Some aquarists have successfully maintained the PearlscaleButterflyfish in reef aquaria; keeping the fish very well fed, and housing alongside only some of the more noxious soft corals that aren't so palatable are seen as key - but caution and careful observation is still advised. This fish does best in mature aquaria containing plenty of live rock for the fish to browse on and forage amongst. As with all butterflyfishes, this species demands excellent water quality - thoroughly filtered and well-oxygenated, with areas of decent current. Tankmates should be of a peaceable nature, as these fish are relatively shy and shouldn't be kept with more belligerent fish or they may refuse to venture out and feed. More than one specimen may be housed together providing that the aquarium is very spacious and all are introduced simultaneously asjuveniles. Do not mix with other butterflyfish species particularly close relatives, as this species will show aggression towards them. Chaetodon xanthurus is replaced by the Redback Butterflyfish (C. paucifasciatus)in the Red Sea, and by Merten's Butterflyfish (C. mertensii) in the South Pacific. These 3 species are collectively known as the "xanthurus complex". In the wild, C. xanthurus and C. mertensii are known to hybridize where their ranges overlap. Pearlscale butterflyfish is the only member of the family with a dark crosshatch pattern on the flanks.
Feeding
Omnivorous. Offer a varied diet including Mysis, vitamin-enriched brineshrimp, Angel & Butterfly mix,and finely chopped krill, prawns, clam, mussel etc., plus some green foods. Feedsmall amounts several times per day.
Breeding
This species has not been bredin captivity. In the wild, these fish form distinct pairs and scatter theireggs in open water.
