I would stay away from feeding them feeders that often. True it is fun to watch them go crazy over the feeders, but as i learned the hard way, feeders are usually diseased pretty badly to the point that your oscars can develop severe problems. Mine just got over both cloud eye and pop eye. The bill to fix that was close to 150 for me...(too f****** expensive) just because I fed them two dozen feeders.
but like everyone is saying 80 degrees, medium hardness for water, all the food they can handle and use variety, no nitrites, 7.5 pH and you will have dogs for fish...