The Redfin Butterfly is mostly nocturnal, that is why we recommend you to keep plenty of live rocks in the tank along with many crevices and caves that acts as shelter to hide or retreat when required. It is better to keep the Redfin Butterfly in pairs or small groups; in that way it feels comfortable in the tank. But if you wish to keep more than one, then you can introduce the Redfin Butterfly all simultaneously. Also, you can reduce the risk of aggression by keeping dissimilar sizes of butterfly fish and by introducing the smallest one at first. The Redfin Butterfly is a peaceful fish, which should be kept in a fish only tank and should not be housed with predatory or aggressive fish. The Redfin Butterfly generally becomes territorial in nature if kept with similar kind of fishes. The Redfin Butterfly may not be considered a very good reef dweller as it is mostly found nipping over the corals and certain invertebrates. The Redfin Butterfly thrives well in a temperature range of 72-78 degrees Fahrenheit and pH of 8.1-8.4. The Redfin Butterfly is very sensitive to organic waste, thus special care should be taken regarding that and a strong biological filtration should be marked in the tank. Keep the diet varied and feed it with a combination of dry foods with live, fresh, or frozen meaty foods as brine shrimp, for its continued health.