What can be kept with a cleaner shrimp? I opted for it instead of a peppermint shrimp(found out it might be a zoa eater, and couldn't risk it.), and would like some advice from people with actual experience. Can I add another or some other kind of shrimp, several other kinds? What's the deal? I read somewhere that some shrimp can only be kept singly, not to mix some kinds of shrimp, and so on. I did do some research, but would like some advice from you guys, since I've gotten such great advice in the past. Thanks!