Has anyone ever done this?? Is it a bad idea?? I am ''inheriting '' a small tank with 2 pictus cats already in it . At the same time I am in the process of setting up a planted Discus tank. It seems to me that the cats are really active and might ''stress'' out the discus. The tank is a 40 breeder.Can anyone give me any insight on this?? Thanks in advance for all replies.