Ok, as long as the temps don't drop during the night it will be fine like that. But with the size of the tank and the waterfall its going to be a real task to clean. Just make sure its cleaned completely regularly or its only a matter of time before ur snake gets sick. I had a 20 gallon long at first and I kept having to mess with it to keep the husbandry right. It was just a pain and more work than necessary. Good luck, hope its easier for u.