Butterflies!! Who's got em.... in a Reef.

[grifter]

Mrfish55 is right your system might be a little too small for any butterflie. As for it being in a reef I think it all depends on the fish itself Cause I have a Bennetti and a Copperbanded in my reef tank and they don't seem to be hurting anyone, all my feather duster are still there. I also have a 6" Gold flake cruising the tank ass will and I was told he would destroy my polyps, but the only thing he has destroyed so far is my wallet, from all the hakari krill and mysis shrimp he's been eating.
But best of luck though