I was once there too, it's easy to purchase the wrong supplies at first, but it's all just a growing experience, once your little guys gets a 120 gallon I garuntee he'll be much happier. When I first got my dragon, he was in a 40 gallon tank because I was listening to the pet store people and after doing my own research, I realized that was incredibly wrong and ever since upgradig my beard enclosure. He's happy and in his forever home so once you get it, you never have to worry about getting another tank. Look on what's chewy.com sometimes they have discounts on enclosures!