Hi there, After reading many Nitrate Threads I just wanted to figure out how to lower my nitrates.... I have a 16g bf, right now they are at 40, I have lost 2 clown fish yesturday but for 2 days now I have been trying to lower them down....I've tried vacumming sand bed which I had never done (Im fairly new to this, only have had my tank for 4.5 months now) and I have done alot of water changes. I cannot afford a denitrator I researched and they are over $100... But I am anxious to lower my nitrates immediatly before I loose my last fish or any of my 5 corals.. Can anyone help? what can I do to lower them right away or fast?