Rabbitfish and their relatives

[melkor]

Does anyone have information concerning what is called the "Brown Spotted Rabbitfish"?
I threw one in my tank about a month ago and only got him out last night. He was introduced to stop an outbreak of Byropsis that had started since he was observed eating it in a LFS (which I had put in there by permission). Well, he left the B. alone but went after the zoanthids first, selective too. After removing all zoo rocks that could be moved to another tank, it started on green button polyps. That I actually was okay with 100% as they had take over a rock and I didn't want them anymore.
Then he began to nip at a 10" Deresa, eating the cilia surrounding it's intake, and making it close constantly. This is when I pulled him out, sadly breaking many SPS in the process.
Having had the Foxface Rabbitfish in a reef before, why does a Fox leave that stuff alone {zoos, clams}, but a Brown Spotted Rabbit go all out like he was a hungry butterfly or angel?
Any help would be appreciated, as I'm real close to becoming a "reef purist", excluding all fish in the future, with the exception of a tang or two maybe.

 

[ophiura]

Not on that one in particular, but I can report a VERY similar situation with another type of rabbitfish, and a few people here have had issues with foxface rabbitfish as well. The one I delt with was in a 3500g tank (never got him out until the tank was drained) and is most certainly responsible for the death of probably about a dozen LARGE giant clams. I cried. I cried a lot. Also couldn't keep a zoanthid alive in there to save my life but the tank did have a few other issues as well. However I SAW it eating the clams, and there were very nice bite marks in the mantle. They went one by one.