Thanks for the information. I have decided not to drill my 5 gallon (actually the glass shop made that decision for me), instead I went to my local pet store and purchased a small plastic one for cheap that I'm going to try to drill to get my loop running. While I was there the owner asked me if I was interested in a couple of tiger salamanders- naturally I said sure that they would make a great addition to my room, so I guess its time for me to start a new thread, and seek advise. I will be using the 25 gallon that is currently empty - the stand is almost finished. I don't think that I will drill it, but that I am going to attempt something similar to what you have done Renegade. Thank-you for the inspiration. Any suggestions for what they will need, and set up for them would be great.