I tried the clown loaches too. Wouldn't do it again. They're really suseptable to ich, which sure enough, the ones I got had, and introduced to my tank! I took care of the ich, but not before it killed the loaches. Also, while I had them, they did nothing for my snails, like they are supposed to do. Maybe just a bad experience. But a better solution is to just let them be. I tried to remove them from my tank at first, now I leave them alone. Except for any that grow really big. I remove the big ones so they won't die and rot and mess up the water, and so they won't do any "damage" while they're alive. But all the little ones do is eat dead plant material and algae, so they really aren't bad. The population will control itself, as long as you're careful. As stated above, don't overfeed. If they overbreed, there won't be enough food for them and the majority will die off soon enough. Also, your scavengers/bottom feeders should have fun eating little baby snails and eggs. I've found my betta eating them, odd as that is. Good luck!