Thanks! The skimmer finally started making foam last night, and the microbubbles from the skimmer has drastically reduced. The wet/dry is working perfectly. All it needs now, is to mature/cycle. What would you recommend... me keeping the center open (for him to swim/walk around), or put things in there like PVC (so he can hide/play). I cant decide which would be better. Also, does anyone know what the levels of the water should be? I am also, over the weekend, going to buy a piece of plexi-glass from Lowes. It will be a custom cut lid. Fit perfectly. My question is, how can I seal of the 2 overflow boxes?