Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
good article on nitrates by john cunningham it tells you how water changes are not always effective on high nitrate levels.
http://www.aquaristsonline.com/blog/water-quality/nitrate-and-how-to-reduce-it/