Quote:
Originally Posted by
SnakeBlitz33 http:///t/388812/my-reef-tank-is-boinked/20#post_3431701
I've added tank to my tank in the past. I guess adding more biodiversity by adding tank to my tank every now and then does make some sense, as long as you can deal with the nitrate and phosphate from the tank that you introduce into the tank.
I add biodiversity every now and then by introducing corals that are stuck to pieces of live rock. I believe over time a tank settles in and microfauna overpopulates and dies down constantly. If you add old sand to the tank, those microfauna may never even reproduce.
Ahh, but each tank is very different in the microfauna contained within it. No two tanks have the exact same composition and the microfauna varies from tank to tank. This is why sand swaps are beneficial.
I don't think that adding a cup or two would cause any noteworthy spikes of nitrate or phosphate in a well established system.