When people at my lfs or this forum tell me that I can't keep certain fish with the ones I have now, I do listen, and I don't see why some others can't. There are predator fish big and small (Bichirs, ells, exodons, etc...) that you can keep in aquariums and the same goes with colorful fish. (Guppies, Angels, American cichlids, African cichlids, etc...)Agreed and bear in mind most people that came in to purchase fish and such didn't really appreciate us asking questions or offering any advice so I became somewhat selective in who I extended extra assistance to.