I started dosing nopox about 1 month ago to bring my nitrates down from 60. So far my nitrates have dropped to about 12 Using the recommended dose of 3ml per 25 gallons in my 100 gallon total volume system. My phosphate has dropped to 0 using the Hanna checker. It used to run .05 or so while running gfo. I stopped gfo about 2 weeks ago. Should I add neophos or just reduce the nopox dose? I already feed fairly heavy and I have a heavy bio load.