My recipe has been 1.3 for years. Keep them together, never separate. I keep my barns between 65-75. Around 80 they all start to just sprawl out and get lazy. But note, these are room temps, not actual tub temps, so if it's 75 in the barn, and there are 1.3 adults and 30 babies running around, the tub is gonna be hot. I breed back all my females. Meaning no break. Shes preggo again pretty much the day she delivers. Of course you can put in way more than 3 females per tub, but if all three females give birth within a few days, overcrowding becomes an issues. Deaths will go up. I also have several tubs of retired moms. Their only job is weaning babies that I pull from overcrowded tubs. They will produce milk for a very long time after retirement. Saves alot of babies.
The key to breeding constant without removing any adults is, adoption. If you have a tub of rats with 2-3 week olds, and a fresh batch of pink is, foster out the older babies. Just throw them in another tub of similar sized babies. Or if the litter of links is small, foster them to a tub of multiple moms with pinks.
I use pine, I've literally tried every bedding there is, and always go back to pine.
I've tried every food, and always go back to a quality rodent block.
Been breeding rodents in some way shape or form since the 80's. Used totes, aquariums, lab cages, racks. Use whatever you can afford, but ideally lab cages or a rack is best. Air flow is crucial. Imagine being is a tall aquarium with ammonia all the time. Not to mention, aquariums are heavy and break. I almost took a finger off using aquariums.
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