Hello everyone, I have broadened my horizons and made a whole room in my house a fish room. I have about 22, 10-gallon tanks, 2, 30-gallon tanks, 2,15-gallon tanks and a 55 gallon tank that I would like to hook up to one big filtration/aireation system. My idea was to take a big air pump and filter them all by undergravel filtration. What do you think would be the best way of filtering them all. I have quite a few whisper filters but I don't have that many surge protectors and it wouldn't be as electrically efficient I don't imagine. I read were one guy had a sump tank that ciphoned out water and was filtered in one big tank but that could get kinda hairy if you had an illness in a tank that could spread before you caught it. I still need to build stands to hold all the tanks to do you suggest metal or wood or what? Give me your opinions, Thanks a bunch.