Thanks I might look into them. I have a 35 gallon tank, with 8 total fish.
I have a silver dollar fish that the pet store people say could be the problem. He doesnt seem agressive when Im around but they say hes different when no ones around. Ive been messing with tropical fish for just over a year and I really like having a tank, if they werent so expensive Id get a monster tank, but my wife sqeeks everytime I even go near the tanks.

Its not the tanks really that are bad its usually the stand that makes it crazy. So if I win the lottery someday maybe Ill get a nice tank.