I want to know if it is necessary to move a worm population to a second container with fresh soil after a period of time? If so, how often does this need to be done?
I followed a DIY video from a popular gardening program and they said to have three containers, one for collecting the runoff / castings, one for the current population to live in and then a third container which you would place on top after a period of time.
The video said once food runs out in the second container they would climb up into the new container and you could switch out the old container and place that mixture into your garden. Then repeat this process.