Well, what do you feed your oscars? I know they will eat like pigs but what selections of foods are you giving them and what their favorites? Mine eat hikari food sticks, chiclid gold pellets, freeze dried shrimp-brine shrimp-bloodworms, tetramins, sinking carnavore pellts, shrimp pellets, frozen bloodworms-beefheart and today I had them eat some fresh sashimi grade pacific blue marlin caught hours earlier at the pier here in hawaii.