I have about 25 - 30 lbs of liverock, as well as a skimmer, and other powerfilters, but I can't for the life of me seem to get the NitrAtes below 40ppm.
Mind you, i am using tap water (Getting a filter for that next week)
Its a 29 gallon tank, and I do a 15 - 18 gallon water change every Wednesday night (Just got done doing one, in fact)
Any suggestions to get that lower (Maybe more liverock / a canister filter, etc etc)???