Well I went to feed my tank today which has 4 small-medium cichlids. As I was feeding them I noticed that my yellow cichlid has a red bump on his forehead, and has little balck dots on it and seems to be a little whiteish around the of his forehead. He was fine yesterday, and today he has a bump that looks like its bloody red, and like hes been ramming a wall. Is he ok, and is there I can do to help him like adding Salt?