A II wrote:
I had the fish thank and the water goes to the first grow bed (flood and drain) and to the second growbed using a T (the foam tray) and then returns to the fish tank. The first growbed has been running for 6 weeks and the water is clean. When the seeds starts growing I'm going to incorporate an air stone to provide oxygen to the roots, maybe then I will filter the solids. Any suggestion?
You are going on the right way dude i had also grown the plants the same away and they are going green still now so no worry at all.