takitaj
Well-Known Member
I was just going to advise what @gbroadbridge said. Phosphates are most likely going to go down a lot quicker than nitrates so watch it closely. You will probably have to dose it. Get some soon if you don't have any on hand. If you don't go slowly things can bottom out over night. Then you'll have far worse problems than slightly elevated nitrates. Smaller doses for a longer period is the recipe for success...patience. I don't like going below 0.05-0.1 ppm phos & 5-10 ppm nitrate.
