I've got a 4ft, maybe + ? and keep him in a 40 gallon tank? To me this almost seems too small, however i use glass tanks and can't find one that exceeds 40 gallon, that is used for reptiles? OR am i fine with a 40 gallon tank for a boa this size?

Also, another question. I use Aspen as bedding, i'm able to keep heat and humidity right and have no problem, however it gets to be expensive...So i was thinking about just moving to newspaper, however my boy LOVES to hide under the Aspen, he spends more time under the aspen then in his hides. Would this be a sour move to change his aspen to newspaper, or anything else for that matter and take away something he seems to love? I'm not entirely sure how snakes feel about these changes. Or do i suck it up and just continue with the aspen?

Insight on either of these questions would be very appreciated, thanks!