Tanks work great! As long as you black out all the sides for security and buy one with enough floor space since most are obviously made for fish, not an animal that lives on the ground and as long as you live in a place where the ambient is always 80, otherwise you will need heat lamps which suck humidity out and aren't very controllable so hopefully your ambient are very stable also and as long as the humidity locally is always 60%+, otherwise you just have to buy more stuff, like misters and cover all the air flow because soaked bedding/high heat/humidity/low airflow is a recipe for health and success for sure. Insulate the sides too, I hear that helps. Then you'll have yourself a real nice heavy breakable enclosure for your animal that will stay hidden 90% of the time anyways. Don't forget figuring out how how to secure it so your snake doesn't escape or hurt himself trying. I love these threads, they are hilarious. If you haven't guessed, I don't use aquariums for my herps. I have pvc enclosures with RHP.