my ball keeps burrowing beneath the carpet in his viv. any ideas why?

[Rikoku]

you guys are great. any preference between the swing doors or sliding? there's one of these Exo-Terra terrariums at my local petsmart, size Large/Low 36x18x12 inches (for some reason that size is not listed on that site). think i should go with the bigger T8 instead?

It is difficult to maintain proper humidity with a screen top glass tank. The T8 would last the life of your snake and will help maintain the proper humidity and the quality is great!. Depending of the size of your snake, you could also use a divider and house two snakes in there if you wanted to expand your collection.