I just bought coral frenzy. It's the powder not the pellets. How do I mix it?? Should it completely dissolve? When I mixed it with tank water there was still some partials floating around in there. Also when should I feed my corals? I have zoas, candy cane, hammer, torch, Kenya tree, mushrooms, Duncan, and a carpet anemone. Should my corals close up when I feed them? I direct fed them. They didn't close up when I fed them the coral frenzy. Thanks!