nitrate
I just can't seem to get my nitrates down anymore than around 60 on a salifert kit. I have a refugium with macroalgae, a good skimmer, and in the main tank a thin layer sandbed. In my refugium I have a thin layer of crushed coral. All other filtration in the sump is live rock. Could the crushed coral in the fuge be what's causing it? I am so anxious to buy coral, but I won't until my parameters are correct. I have been fighting this for a year now with no success. Will I always have to have a FOWLR tank? Any suggestions would be appreciated.
Christa
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