don't get a clown loach in my opinion unless you have a large tank for it or another home for it to go to- they get BIG. cories, which stay relatively small, really like snails. also, you can get an invertebrate killer. it is usually a fluke medication, but it will kill snails- worked for me! it will not shock or even bother fish as long as they have bones, and most do, so it's a good cure (LoL I'm a dork)