Both of my oscars are around 6 inches long now and I have a few questions. The first being, when should I slow down feeding them? Right now I feed them a good amount of hikari cichlid gold pellets in the morning and at night, they each get two cubes of frozen bloodworms. I was wondering what else is a good frozen food source to feed them that is commercially readily available. Next question is when should I remove the decor in the tank? I have a few medium pieces of driftwood and 3 medium sized rocks and a plastic plant. The reason that I ask is that every now and then, they will go crazy and night and bump into things and the next morning they are missing chunks of skin from their forehead The tank size is 55 gallons.