These are VERY active snakes. I think anyone keeping them in a standard rack style tub is doing the snake and themselves a real disservice. The photo posted would be the way to do it in my opinion. I've seen cages as large as 8 foot long 4 foot wide and 6 feet tall recommended as a minimum for beauty snakes before. So keep that in mind when thinking about getting a large colubrid like this. Now that was a European guy and they tend to go big and natural but the way he describes his own beauty's activity levels I'd not be surprised if they utilize every bit of that space. The smallest I've seen recommended was 125 gallon sized which is still a 6ft long enclosure so do keep that in mind.