Quote Originally Posted by The Serpent Merchant View Post
I use smalls up to 350 grams, mediums up to 1200 grams, and then larges.
Maybe my BP is an odd duck, but I have a ~4 month old BP who last weighed in at 256g.
He wears the small size like a turtle shell at this point. He spills out of the sides, lifting it off the ground on 3 if not 4 sides every time he attempts to go inside.
I currently have 2 mediums and 1 small in his tub. He uses all three, but generally seems to prefer the mediums.

How a 300g+ snake fits in there is unclear to me.