I see the quick breeding as a good thing, as we can control the breeding by putting the males where we want, and if they are so prolific, they will be more consistent. If they age slowly, I would probably be feeding multiples still, which would also help cut down on overpopulating. I can sell extras to another friend of mine as well, but I see your point with not being able to sell extras to pet stores. There is a pretty reputable exotic pet store near me that breeds their own feeders, which I may be employed at soon, if all goes well. I may be able to convince them to let me sell them extra ASF's, maybe, since I wouldnt ask much, and even then it would be in store credit.

If I still use a plastic bottle, but just stick the metal tip through the hardware cloth, wouldnt this work? The critters wouldnt be able to get at the plastic to bite at it.

We have some glass tanks we could use, but they are more of a pain for cleaning, and not stackable without a rack.