i just bought two 1.5inch clown plecs. i have a fry tank that could do with a clean for a day or 2. it is only 38 litre with quite a few platy and molly fry in it (they are only 2 weeks) i take it the plecs wont bother the fry and visa versa. also i can use this time as a form of quarantine. is this a good idea? any other info on these plecs would be good. need answer asap! to avoid stress to fish. thanks