I continue to loose LEAR frags ... they are slowly bleaching white . I cant get NO3 or PO4 down slowly. They continue to be way above my old levels : in the past week my parameters are: No3= 4-8, and PO4 =.132-.153, ALk= 8.0-8.3 DKH , Ca+ 400-410. SO guess I will just start doing 10-15 gallon water changes every other day - run both Carbon and GFO switching it out once a week, and go back to filter socks. Dose calcium chloride and soda ash or Kalkwasser solution to got to my old parameters. I figure I have already lost all the LEAR frags anyhow -so going slowly is a mute point now. Hopefully returning to Low No3 (under 1) and low Po4 ( under .1) and medium/high ALK (8-10) with ca+= 450 - which is what I always had good luck with until this past fall. I just cant figure out what changed so my No3/Po4 got so high and wont come down. If this does not produce results than I am out of sps/acros all together and will have a Zoa/LPS/fish/clams/etc. tank with no SPS as the frustration is now past tolerance levels.