It can be a very frustrating thing -- been there. It's basically a bioload input versus output thing. Lots of factors .. feeding, amount of live rock, amount of skimming, macro algae growth, amount of skimming, denitrators, deep sand beds; all can be tweaked to help. Really advanced ideas include sulfur reactors and dosing vodka, I don't know much about them but you could try a search.
Good luck!
__________________
-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
|