I just started dosing Nopox as my nitrates are above 50. My phosphates we're at .4 and have lowered to .17 by using gfo and water changes but nitrates haven't budged. I gave away my Fox face book(reasons unrelated to nitrates but definitely lowered my bio load) and drastically decreased my feeding. I have 80 gal of water volume. Using the instructions, I should dose approximately 10 ml of Nopox daily for the first week and then test again right? Also, since the export of phosphate is a slower process, I should be able to (at least for the short term) keep my gfo online for phosphate management and further reduction, correct? I would like to get my levels to 3-5 nitrate and less than .1 phosphate. Thanks in advance!