I recently bought a small 1.5" Valentini Toby, which is a neat little fish, and placed him in my 50 gal. In the future I would like to add a couple of cleaner shrimp, but I'm thinking the toby might be a little rough on them, true or false. He constantly nips at my snails which is quite comical to watch, however they have a hard shell, cleaner shrimps on the other hand might suffer. Any suggestions, appriciated, thanks MGB