Quote Originally Posted by alton View Post
What do your softies/LPS look like or is there none in your tank? The last time my tank showed 0 Nitrates was in my 200 and my Xenia crashed and dissapeared.
I have experenced this myself, except without the Xenia crash. I notice my SPS loose their color, and all visible algae in the tank dissappears. It starts a chain reation, a total biological breakdown in the system..... As long as algae is present on top of my rock I know the tank is healthy. Once it disappears is when I start getting nervous. I am experiencing this right now, so I've been dosing nitrates from a new system I am trying to establish. From my experience a traditional system can become to efficient for its own good.