I would not put them together. Micheal, you seem to be having some health problems with your fish. Did you get the one healed that had the hole in him? HITH normally water conditions. Are you doing regular water changes, and cleaning filter boxes?
If you change 20% daily that could be a problem, to often unless there is a problem. Water clarity and price of food have nothing to do with it. I am just saying you keep having fish get sick there is something wrong. Don't be so offensive I am trying to help. Variety has nothing to do with price either. I don't pay but 13.00 for a large container of food, but feed the oscars worms and krill and healthy as far as I know. I have lost 1 fish to bloat.
Not saying anything bad here, but Oscars are just kinda not attractive to me. I don't know how their personalities are, but I don't think I'll ever own one because of the waste they produce, plus with my pleco in there he already produces enough poop. =)
Incredible shot. It's like they're posing for you