Racks... So many to choose from.

What do you guys Recommend for a pre-made rack... Boaphile? Animal plastics etc... I'm looking to set up a small breeding project 4 adults max, and hopefully some room for hatchlings in the future.... How about heating? Belly heat? Or back heat?

I'm thinking about buying 2 racksracks adults and 1 for hatchlings... What size tubs should I look for?

Thanks

I use animal plastics economy belly heat I believe the tubs are 2 8 or 1 16 quart.