I know a lot of people on here have huge tanks, (or claim they do) but what's the cheapest and largest tank anyone's ever set up? I'm kinda bored today and not really a football fan. I decided to set up a free old 38 gallon in my basement today. Got a stand, tank, a small filter, and small heater. No gravel, no top, but have a small light, but it isn't long enough for the tank. I currently own a 90 g, and a 50 g. I may turn the 38 into a small feeder tank, or throw a few barbs in it, not sure yet. Hoping to spend maybe 50$ on total tank set up.