The blueline rabbitfish in my 92 corner reef is one of the most boldly beautiful fish. However, when the tank is being disturbed (i.e. cleaning, feeding, rearranging, etc) she is also the first to disappear. Seen in this photo, all i did was stick my camera towards the glass and it is attempting to hide behind the toadstool. My point is, rabbitfish has a general shy personalitu since they are herbivours( lots of nori in their diet) they fall prey to many others in the wild. So if you have one or planning to have one, gentle and friendly tankmates and attitude towards this beauty is the beat way to go. Oh, and if you are not gentle with it, their dorsal fin is equipped with a venom spine that can inflict quite a painful wound on the handler