I've tweeked the exit ramps on my bin so that I'm now taking better advantage of the self harvesting behavior. Yesterday about 2 dozen final-stage larvae dropped into my collection buckets. I fed them to the three WM that are now in the fish corral and they took them quickly. The numbers of younger larvae are increasing so I expect a much higher yield soon.
The black color of the final stage doesn't seem to make them less attractive to fish. They also seemed just as active as the mid stage larvae.
The bin is virtually odorless when the lid is down. When I open the lid there is only a mild and pleasantly earthy aroma.
