Hi from Australia guys, Just found your site today and thought it looked like a good place to join up and share marine info. I have a 3x2x2 foot tank with an undertank bioball filter and skimmer all made by myself and four fluro lights. My tank has both soft and hard corals in it plus a Blue Spoted Puffer, Sailfin Tang and a Clown in a pink backed anemonie. As well as a an orange starfish and a sea purple cucumber. I jave neglected my tank for the last few year with a young family taking up my time but have decided to get it back in full running order. Curently have a mild nitrate problem that i have been working on with water changes and a filter bag. Would love to hear from anyone who has had luck with a denitate fiilter.