Potatohead
New member
5 and 9 is as accurate as it's going to get - The ULR actually has a fudge factor of four.
After dealing with and researching cyano like a madman the last six months, chances are your sand has some bound up PO4. Running GFO and manual removal are likely the best options until the bound up PO4 is gone.
After dealing with and researching cyano like a madman the last six months, chances are your sand has some bound up PO4. Running GFO and manual removal are likely the best options until the bound up PO4 is gone.