i had two clown loaches in the tank with my oscars. they were about 5" long. my LFS got them in while were there, and he sold them to me for $11 each, the other two that he put in his tanks to sell he marked for $35. so you can get a deal on them if you know your LFS owner well. the oscars didn't even pay attn to the loaches, and they hid in two stumps that i got from petsmart. they were fine till my flathead got big enough to eat them. they just came up missing one day and the cat was fat. as for toys, my lfs sells plastic shells and such that are colored see through, and my ascars love to scoot them around the tank.