Hi Tom,

You said that you were drilling the bottom of the tank for the in & out flow, how are you doing the out flow to the filter. I ask because I will be going down the same path with a 36Lx18Wx21H. The guy who will drill my tank has recommended gluing a piece of glass diagonally acros the corner of the tank to create a weir. This will eat up a large area in the corner of the tank. Is there a better method?