The tank in question that I bought at the reptile show was made for fish. The stand was the wooden two door. Although I didn't use it for fish, they can be cleaned out with a breach solution if its glass and won't absorb the chemicals. I agree that you have to be careful with what you buy and know what you are doing. When you buy any used tank, you take the chance of it having been used for something else. private sellers aren't always honest with what they have kept in the tank.

That said, I knew several people who were into more than one kind of animal that needed a tank, including fish. i never saw the fish, but they never had any problems with leakage, cracks or problems with the sealing. Any time you buy used, unless you know the seller personally, its a risk, regardless of what you put in it.