I have another question. I've also got an FX5 on this tank and I have another one that I can swipe off another tank. I was thinking about throwing it on there...temporarily, maybe permanently...while I'm fixing the sump. The problem is that I'd have to drill another hole in the top of the tank (300 wide acrylic) as there is nowhere to run the extra tubing. I bought the tank from Acrylic World and they haven't fixed anything that was wrong with this tank, so I'm not worried about violating the non-existent "life-time warranty". Is this too risky to do with the tank with water in it still?


