These are the same racks I use except for my females over 2000 grams. I have some males that are 500-600 grams still in 16 quarts because when I try to move them up they stop feeding, I put them back in the 16 and they eat. The 32q's are fine for most adult males but most females will require 41'qs as they get large enough to upgrade. You will also need a thermostat for these racks.