Niger Trigger, in a reef tank?

[hecks220]

I have one in my fowlr. thinking about putting an auto feeder in there because he is always hungry, and don't want him to go on a homicidal rampage. he didn't touch the cleaner shrimp at first before i removed it, and hasn't touched the snails. he did however want to kill the big hermit i placed in there as a test last night. i need crabs for the cleanup crew, so i'm still thinking what type would suffice. the problem is when they are accustomed to a tank, whatever you add new after that is viewed as an offering!