So here's the dilemma...
The smallest size litter box type tubs (primarily used for mouse racks) are too small for ASFs.
The next size up are too deep. All my babies need food thrown in or else they starve. I tried hoppers but that just seems to give the adults purchase or a gap or something to chew on the tub edges.

Does anyone know of a better tub for ASFs? Something with good floorspace but less depth?