So the rack is out for delivery!

I have everyone but Kassi in 15 quart tubs. I already purchased 4 32 quarts since they were on sale last week. The younger snakes range from 85-195 grams. Think it would be a good time to put them in bigger tubs? I would keep their hides in with them.
One reason is besides the belly heat I had them install a radiant heat towards the front to bump up the ambient temps a few degrees if needed. If it works great if not then I will go back to bumping up the house temp a bit.

Any other tips or advice would be greatly appreciated!