I thought it was fairly well known that ASF enclosures have to be mouse proof.

As for the rat foster idea, I'll have to give that a shot next time I have a rat litter. I've thought about going the other way, fostering rats with ASF just because they have so many extra teats, but for some reason never considered putting an ASF with a rat mother.

Mine seem to feed okay from mouse bar spacing on wire top lab cages, but that';s not the same as 1/4" mesh.