Oh no I know, the thing is that I only feed my two clowns ever other day, I run my skimmer 24/7 and the only time that the nitrates go down is when I do a very large water change (RO/DI). I'm not too worried prior to my copper "incident" everything I had in there was thriving with a range of .10-.20 For some reason my reboot isn't working out as I planned it to.Phyl said:Nitrates can't be fixed with a PO4 reactor. That fixes PO4. Nitrates are controlled by removing detritus, water changes, skimming, reduced feedings, etc. 6g water change would reduce your NO3 by .04 per week, providing you didn't add any more to the system through feedings.