i just figured i would follow up on my problem with my cal and mag binging low i have been adding adv mag and turbo cal like craxy levels came up alittle mag from 1200 to 1240 and cal 330 to 360 but since i have been adding the stuff my corals have been lookin really good and r spreading my pulsating xenia that i thought was gone (it was a blob on a rock) actually has like 10 arms on it now so i hope things keep goin the way there r thankx to the guys on 3 reef that is