I have a 55 gallon with 230 pc lights. I have had it up and running for 5 years with just fish and an anemone. Recently I decided to put some corals in and see if I could do it. My zoos look to be alright but my Calcium is at 500 and alkalinity is high. The saltwater store said to use a product called C-Balance so I have and the Calcium and alkalinity are not stabilizing so what should I do to get it to stabilize.