| I really concur with Carmie, Jay. By "pushing" your calcium levels to try maintaining an unnaturally high level you are flirting with a chemical disaster. I experimented with keeping my calcium this high years ago and one day I woke up to a calcium precipitate that covered everything in the tank including the glass walls. It was a bitch to scrape off and the tank eventually had to be torn down.
If Mother Nature believed the critters in the ocean would do better at 550ppm of Calcium she would maintain it there. But she knows that 450 is ideal. Why do we humans try to best Mother Nature?
__________________ Amphibious Reaching my 70th BD, I realize that I cannot help but grow old. However, I refuse to grow up!!! My wife would tell you, "He may be 70 but, He's going on 17". Life is wonderful with a woman like that. Our web site The Cultured Reef Our Talking Reef Forum The Cultured Reef Forum My tank journal Amphibious' 135 mixed reef. The Cutured Reef toll free number - 888 745-0449  Amblyeleotris randalli commonly called Randall's Goby. | 
