Care
The Threebanded Butterflyfish is known from shallow, rocky reefs, tidal rockpools, middle estuaries, mangroves, and from near the shores of small islands. Here these fish are often observed feeding on algae and benthic invertebrates, either in pairs or small groups, sometimes forming shoals with the Pacific Spadefish (
Chaetodipterus zonatus). This species grows large and requires a spacious aquarium with plenty of swimming space and a multitude of hiding places. Unfortunately, most soft corals, many stony corals and a whole host of other invertebrates will be picked at and eaten, so these fish are not suitable for reef set-ups. Threebanded Butterflyfish are best kept singly, as they are more likely to chase conspecifics than many other butterflyfish species. However, in more spacious aquaria, it is possible to keep a known mated pair (although be aware this will not work in smaller quarters). These fish should not be housed with any other butterflyfish species, as within the confines of the home aquarium they will show much hostility towards each other, especially similar-looking species; however they are usually safe with non-related fish that can look after themselves (avoid any small, docile species). As mentioned previously, the tank should contain an abundance of rockwork for the fish to hide amongst, but do leave a large open swimming space along the front of the aquarium. As with all butterflyfishes, this species demands excellent water quality - thoroughly filtered and well oxygenated, with areas of decent current. This fish is very similar in appearance to the Banded Butterflyfish (
C. striatus), although with the latter, the posterior two dark bars are thicker and set slightly closer together.
Feeding
Offer a wide variety of foods, fed in small amounts several times per day. Frozen foods such as Angel & Butterfly mix, Mysis shrimp, vitamin-enriched brineshrimp, finely chopped clam/mussel/cockle/crab/shrimp/squid etc should be given, along with some greenfoods. Ensure the larger foodstuffs are chopped into small enough pieces on account of butterflyfish having tiny mouths.
BreedingThis species has not been bred in captivity. In the wild, these fish form distinct pairs and scatter their eggs in open water where they are dispersed by the currents.