Normal stuff with Oscars.. this is the fun about having them. Don't worry about them not eating every time you give them food. My 4 year old O likes to dig a whole to the glass to get a look at his reflection. When he does so he sometimes will get so into himself (lying on his side and swimming in cicles) that he'll stay down there for up to a week and lose all interest in food. When I do a WC I fill in his hole and he eats like a pig for a couple days then goes back to digging and spitting gravel... the cycle continues. He also attacks his reflection banging his face on the glass swimming along side it with gills flared... attacks his powerhead and heater... and has more than once spit water into my face when feeding... tries to jump into his bag of food.... ridiculous clown of a fish (I love him).
Oscars are ridiculous fish and a lot of fun. I don't feed mine anything but hikary biogold and hikary food sticks (the red ones) and only when he begs.... when he doesn't have a hole to stare at he eats every day.... when he has a refection to stare at I sometimes wonder if he'd starve to death before eating.
