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I plan to feed only the left half of the bin. The right side will be kept damp so the worms have room to explore. When the left side has a good amount of castings, I will stop feeding that side and begin feeding the right side. It's a basic lateral migration system. When most of the worms have moved to the right side I will harvest the left side. Hopefully this will disrupt only a minority of the population.
Note: I quickly abandoned this plan after Brian pointed out that worms rarely followed migration directions. I feed all parts of the bin and will figure out a harvesting system later.
This system will require a bit more time to maintain (mostly in food prep) and some electricity costs. If it succeeds, however, I'm hoping the EEs will be able to process a considerable amount of kitchen scraps in a bin free of the usual bin critters that many people find annoying.
Sorry this video is a little long (5:23), but I haven't had time to edit it. I was just a bit too excited about receiving these worms, so I sound like a kid with a new toy. You're seeing my reaction to seeing EEs for the very first time. Feel free to turn down the volume, but you should at least take a quick look at how big these worms are. Fast forward to the 4:00 mark to see them next to a measuring tape.
I bought these worms from Steve and Jeanne Landwehr at Northern Lakes Worm Farm.
*Note: they're now calling them "Red Hot" Nightcrawlers instead of African nightcrawlers. You may want to contact them to verify if they're the same.
Jeanne responded to my emailed questions quickly and was upfront about the fact that these particular worms were not raised directly on their farm in MN. I already knew that many worm sellers use wholesale farmers or drop-shippers to process some of their orders and simply wanted to know what to expect in terms of shipping time to CA. You can see from the video that the quality of the worms I received was excellent. I highly recommend contacting the Landwehrs if you choose to order African nightcrawlers.