I'd like to add that with small bp's in a large tank, you really want to make sure there's not a lot of open space in it. You can add a lot of decorative foliage and multiple hides in various spaces. Younger bp's can get stressed if they don't feel they are safe and that can possibly lead to feeding issues.

this was my 29gallon glass terrarium before switching to a rack he had 4-5 places to hide throughout his enclosure