I have a tiger oscar that doesnt really like to eat the pellets I give him. I seen that they need different kinds of food. What other kinds do you suggest? I do have bloodworms but those are more for treats. The same oscar I think might be sick. He does have some white spots underneath of his belly. Is this ich? If so what do you suggest would help get rid of it. I have already turn the temp up to around 83-84 degrees. Please help my 3 month old oscar!!