Thank you for those who helped with my sump upgrade post but i have a new idea that i think might be better and cheaper which is allways a plus. So insted of trying to remove the 30 gallon sump i have under my 75 and risk total distruction, i think im just going to leave it in and outfit the extra 20 gallon i have not in use, drill it and put it next to the main tank as a nice fuge. this way i up the water volume alot more than just get a better sump. Here is a few questions... first, can i drill the 20 gallon? is it safe. Also can i use the mag 7 i have as a return to the main tank and use it to pump water from the sump to the fuge, get a mag 9 or something to replace it or is that to much flow for such a small fuge tank? (if anyone has a Mag that would be good for the return please let me know) thanks all you guys are so much help!