I had my heart set on one of the rubbermaid 300 gallons since they have such a big foot print (I think it's 69"x63"), but maybe another kind will have to do. Not sure if I want to go through the cost of heating it, it would be nice though. I could put an oscar and a big pleco in it, maybe some clown loaches. Keeping it unheated would be fun too though. Maybe have a nice big oranda, a whole bunch of white clouds, some rosy barbs, and some weather loaches.