So another noob question, going thru uglies, the rock appeared to be getting color ( greens browns etc) air bubbles started appearing on the uppermost algae surfaces, what appears to be a patch of red cyano growing over some bubbles and now these round white patches- I thought bacterial blooms at first but upon closer inspection appear to be patches were the algae has disappeared - is this just part of stabilizing or is something eating the algae? I have 2 small clowns, a cleaner shrimp and a small serpent star-need to get me some more CUC