I have yet to feed off any of my producers. I think the guilt factor would kick in. HOWEVER, I don't think I would feel extremely guilty if I co2'd them first then froze them for sale to the local petshop as jumbo asf's. That way I can do it slowly and she will just go to sleep.

However, the offspring is no issue to feed off. I mainly feed off males and on the rare occasion a female. Just seems like they spit out 75% males.