Quote Originally Posted by jcnkt_ellis View Post
Rocks actually shouldn't suffer from old tank syndrome if they have proper flow on them. The bacteria on the surface of the rocks breaks down the waste on them and as they die, the still living bacteria shoves them off the surface of it.
one day your rocks will take on so mutch phosphate it ill start to release and cant hold more if you are not taking your phosphate out your nitrogen cycle will not remove phoshates