schooncw
Well-Known Member
I just purchased a bottle of Phosban-L. I have a 120 mixed reef with no SPS and can not get my PO below 0.5. I use Salifert test kits. I have a lot of rock and much of it is 20 plus years old. Also, the LFS I really trust, adds it directly to his tank without dilution; any follow this method? Any advice or thoughts?
