You do know Clown loaches get BIG, right? Just checking. Full grown they may make a meal out of the tetras and cory cats.
Well, I think it would be easier just to not get them at all. Get a bigger school of cory cats. Say 10 to 15. Sorry if I sound rude. Not trying to be just offering suggestions.Well I'll have to shut down one of my tanks when I leave for college in a little over a year, and knowing that the clown loaches get big, they would be the first fish that go back to the lfs.