I had my fish three goldfish in a 5 g tank. They now have a 55g. I just got back from the store and got the stand and tank up.
heres pics of the new tank
great! now all you need to do is cycle the tank and youre ready to put your fishes in. quickest way is to use bio-spira if you wanna move your fishes in there quick. watch out for OTS. the shock may stress out and kill your fish.