When people have like 40+ snakes in those rack systems (the plastic kind of ones) and they reach adult size does that mean they will have to get vivs for all of them? I mean, alot of people keep like boas and that in there but surely when they get bigger they will need to find them much larger enclosures.
There are racks of all different sizes; the hatchling racks contain very small bins, but there are racks with larger bins, too; some that are even large enough for burms and retics.
