Any ideas on how to lower nitrates or what to use? I have 100g tank and everything looks good except nitrates
I'm starting to add coral but I would like to know what to do to lower my nitrates. I do 15 to 20% water change every week, feed once a day very little, I use chemi pure elite, protein skimmer, CUC, good water flow.
Someone told me to change my bio balls for live rock on my sump. Any ideas??