I've got a trio of clown loaches now, two seem to be doing well, but the other is hesitant to eat. (I really need to stop buying these small guys, but they don't have anything else near me.) Whether or not he dies, I'll be adding a few more clowns later this week. Would it be a good idea to mix a yoyo into their little group? Petsmart near me is clearing out their stock of yoyos and I think I saw one in the wrong tank. Yoyo would be solo if I get him since I only saw one. Any input? Yoyo is only 3 bucks. 