they are one of the few reef safe butterflies. they are planktonivores. any species of butterfly in the Hemitauricthys Genus are safe. make sure they are eating though, but most eat fairly well since they are used to picking food out of the water column.
Thanks. I am pretty sure its eating, its been at the store for 2 weeks that I know of and looks good. I havent been since last week, I will go look in an hour or so and see if they still have it. If they do, I think I will buy it.
I went and had another look, I didnt buy it because their clown tang was dead, last week thier naso tang was dead, so I am guessing its only a matter of time. I am going to have one special ordered from a marine specialty shop instead.