DSB in a bucket for nitrate control

[DrBegalke]

Originally posted by ChinChek787
Phosphate will bind to the sand, eventually the sand will no longer be able to bind phosphate and it will begin to build up. I would think that simply removing the top half would be adequate as it would leave a good protion of the denitrifying bacteria in tack while providing fresh substrate for nitrifying bacteria on more phosphate binding. A phosphate reactor would help prolong the usefulness of the sand.

Probably a good idea since the aragonite can release the phosphate fairly easily:

http://www.rsmas.miami.edu/groups/jmc/fla-bay/fbay.html
http://www.advancedaquarist.com/issu...t2002/chem.htm