Do you have a protien skimmer? That will help with water quality. I have a wet/dry with bio-balls in the first chamber my PS in the second chamber and my return in the third chamber. The second chamber was set up for bio-balls but I removed the balls drilled a second hole in the top of the first chamber, so that I still have two drain lines coming from my tank to the w/d, that way I could have my PS down there too.
But, I am having a problem with my NitrAtes which is at 20 right now. I'm toying with the idea of putting some cheato in the w/d some how?
Jeff