adding cleaner shrimp

[Nihoa]

does anyone have a feel for how big a cleaner shrimp would need to be so that my 3" twinspot (or candy) hogfish wont bother it?

[Nihoa]

no one? i read they can bother small and ornamental shrimp but it doesnt specify size. i know throwing sexy shrimp in there would be a poor idea but i dont want to have to guess as to how big a cleaner would need to be to be left alone.