The Moorish Idol (Zanclus cornutus) is one of the most iconic fish in the sea. These beautiful fish are known to be very difficult to keep in aquariums due to their lack of eating in captivity. However, we have had a 100% success rate of Moorish Idols eating from our current supplier. In fact, they quickly become pigs eating everything we throw in the tank!
We only purchase Moorish Idols that have been collected from Hawaii by highly reputable collectors. We believe the better collection process and shorter transit time attributes to our success with these beautiful fish.
As with any fish, it is important to feed Moorish Idols a varied diet. At the store, we feed our Idols a mixture of a high quality pellets, flake food, algae strips, and frozen preparations. Most of our clients house these fish in reef aquariums where they can graze as well. Keep in mind that they are not completely reef safe. The diet of a Moorish Idol in the wild consists mainly of sponges, tunicates, algae, and small crustaceans. However, in an aquarium there is a chance they might nip at coral. The most at risk coral would be fleshy LPS such as acans, trachyphyllia, ect.
Moorish Idols are very peaceful fish. They can be housed singly, in pairs, or sometimes in groups. However, it is best to avoid keeping more than one male in an aquarium since males can be aggressive towards each other. Sexing Moorish Idols can be tough. One method used to identify a male is to look for a large eye spike. Males are thought to have significantly larger eye spikes.