ok im going to get a tub for my snakes tonight, err tubs i guess. and i dont know what size they should be in?

my boa is about 20", around 4mos old.

the 30 qt is
16.7"L x 13.3"W x 11.3"H


the 41 qt is
29"L x 18"W x 6"H


which one is better?


the height of the 41 seems a little short to me for a snake, but then again ive never kept tubs...

blah