Well what I did is I put a seperate chamber before the actual plant chamber with a rock medium inside, and have the polluted water flow over that, and as it does that, bacteria forms. The bacteria stay in the area of the rocks because I guess they attach themselves to it.

As you can see in that picture, there is a little cylindrical chamber above on the top right, which holds the rocks and bacteria.
ADM Reviewed by ADM on . Anyone using Aquaponics? I have a new set up for my grow, basically I am growing 1 plant, SOG, using CFL's, with aquaponics as my growing method. The turtle/fish, poop, and that "dirty" water is pumped down into my rock reservoir, where bacteria collects on the rocks, and allows nitrates and other stuff to be produced. Then that water/nutrients gets siphoned out to my plant chamber, where there is a constant flow of new water coming in and going out.(the picture will explain more later) While in this chamber, the Rating: 5