Is it ok, all other things (temp, humidity, hide size, etc) being correct, to put babies in 24x18x7 37qt tubs?

They're going to be keepers and the fewer times I have to upgrade their living quarters the better.

Also, for those with many snakes, do you have a thermostat for everyone? I used to run three tubs off a helix with flexwatt but it was always a pain to get the temps in each one right.