My compost tumbler is FULL of black soldier fly larvae. Chicken manure and coffee grounds constitute probably 75% of what goes in the tumbler these days. I'm not sure I want them in there in quite such massive quantities--they kinda gross me out. I keep reading about people who cultivate colonies of them to feed their chickens, but those don't sound like the same people whose larvae are subsisting on mostly chicken manure! Is anyone harvesting these out of chicken manure compost to feed their chickens? I'm not really feeling too excited about fishing them out of my compost tumbler anyway but am curious.