Well I actually have a tank available and I set it up two or three days ago, cause I knew I wanted to put something in it and I had been thinking about those frogs for awhile. I bought it so long ago, I think its somewhere between 3 to 4 gallons, I figure that size should be okay for one or two froggys I don't plan on having any fish though,I already have my huge Queen who is causing me enough trouble right now lol, but I still love her!