For that, Tank, I would post in the forum applicable to your setup. The Fish Forum is supposed to be for FO...the same for the Reef. So if you have a reef tank and are having problems with phosphates, then post in there. But really, in that situation, you could really post in Reef, FO and even in diy, because there are chemicals and even equiptment that you can use to control such. Try to post in the forum that is most applicable to your needs. This not only keeps the BB cleaned up, but it help the person who is having a problem too. They want to get answers to questions from people who have similiar setups or tank issues.