So I set up ALL of the female weaned soft furs in one of my big 2' x 4' rat cages. Plus I put in 3 males. I didn't count the females...
...They are not old enough to breed yet, but it won't be long. At first, I will just leave them together. Maybe put some nest boxes in. I don't think I will be able to remove pregnant females to a different place though - I don't have the time and space for that. I will just thin down the numbers if they don't do well in this setup.
Kathy, I don't remove the pregnant females and have had no problem at all with cannabilism or fighting when the babies arrive. These guys seem to love big colonies and do well. There isn't that dominant alpha male attitude that you see in mice colonies. Both my off shoot colony and the original colony have at least 8 or more adults living together. There are at least 2 males in each colony.
Yup, up here in Canada these are becoming very popular as feeders for balls, especially the finicky ones and folks are having lots of success. Some feared using them would 'imprint' on the balls and they would accept nothing else, but that has been proven not to be the case from what I've been reading.
My corns have taken to them readily in most cases. Those that would switch between mouse and rat already, gobbled the ASF's. Most of my corns who would turn their noses up at a rat offering, took the ASF's immediately without hesitation; there are still a few holdouts tho.

. Those that would only eat rat (don't have many of those but I do have 4 rat only eaters) took the ASF's after smelling them out for a minute or two. I've been feeding ASF's randomly now for almost 3 months and have found no problem with any of my corns refusing to return to the original food source offered, ie mice or rats. Yearlings have accepted the switching back and forth easily in most cases.
I have one 3 year old female who looks like a yearling in size. She has been my worst nightmare as far as getting her to eat mouse or rat on a consistent basis, thus her very small size. She refuses anything larger than a mouse fuzzie or rat pinky, thus I've had to offer her 2, 3, 4 fuzzies when she would eat. Usually I have to leave her mice or rat offerings overnight and remove that which she has deemed not essential in the morning. She wolfed her first ASF offering as a fuzzie right off the tongs. I'm hoping to now see a growth spurt happening with her...she's been shedding on a monthly basis as her size is increasing with her now regular feeds on ASF's. I'm watching a success story right before my eyes in this particular case. Sure some would say she's now imprinted for ASF's but my days of worries and concerns over her feeding habits are now gone.
Just my experiences working with these ASF's as feeders. I'm totally happy with the results I'm seeing. I wish you as much luck as I have had. So far I haven't seen a reduction in production of the ASF's litters due to heat. Of course our ambient temperatures are not as warm as yours yet, but it is above 80 degrees in the snake room where the ASF's are being housed for now.
ASFs get my vote as the best thing since sliced bread...

in the feeder department.
Ruth