So I still have my adult size female in 32 quartz rack. They are approaching 1600gram and seems to thrive in the 32 Quartz. Eats weekly not hesitation, sheds perfectly. BUT the rack itself isn't holding out as well. If you use PVC rack like me be aware of the major sagging problem that can occur. With two 1600gram female on the top drawer the bottom drawers would have slight problem opening and closing. I been just using it like that honestly, thinking of upgrading them to bigger 41 Quartz rack but I'm unsure if the same sagging problem would still occur as PVC is flexible by nature.
Than again if you are using wood or buying those nice metal ARS system etc it would be a problem at all