View Single Post
Old 09-18-2009, 04:20 AM
G.Alexander's Avatar
G.Alexander G.Alexander ثeu
Join Date: Jan 2005
Posts: 35,994
Default Kalkwasser by G.Alexander

The kalkwasser will bind PO4 from the water column and this compound will accumulate at the sand and rocks for example. Under several conditions the PO4 can be leached back in the water column, also algae for example can pick up the PO4 directly from the substrate. It can be typical for such systems to have no detectable PO4 in the water column which several kind of algae grow very well.

Kalkwasser does not have a direct impact to the system or its components so its more a general advise.

Last edited by G.Alexander; 08-31-2010 at 03:40 AM.