earthworms tooTry garlic oil. I had to soak pellets in that for my Jardini to take to them. Also what you could try is crickets/mealworms/butterworms. I know my Oscar Loves these foods. My oscar is always the first one to the top of the tank inhaling whatever he could fit in his mouth.
try the cockroachesI couldn't find crickets or worms, and there are only cockroachs .. D= D= D=
Yesterday I put a little fish for him, but he didnt attack the little fish..
I put the pellets on a garlic juice + fish meat solution during the night, and tried to give it for him in the morning, but he didnt like it, even my cichla attacked it (they spitted anyway) but the oscar didnt..
I also checked his belly, and looks fine, theres no bloat. Hes fat, with a wide body, and the belly seens to be proportional..