As you may know I raise white worms as well as blackworms. (I am an equal opportunity worm keeper)
The problem with white worms is that eventually the dirt they are in becomes more worm poop than dirt and it has to be changed. To do that I scoop up the dirt on one side of their enclosure and throw it out, then I add more dirt. The problem with that is that I also throw out half the worms so I experimented with a few things to separate the worms from the dirt.
I tried electric current. AC and DC but it did not allow me to collect worms so I tried adding a net over the worms after I flooded them.
But now I think I have the worm extraction thing figured out but it needs a little tweeking. The electric thing does not work. It definitely annoys the worms to where they scratch curses at me on the inside of their enclosure and I can't stand their screaming, but I still can't get them out of the dirt like that. The experiment where I put a clod of worm infused dirt in a container and cover it with water works. I cover the dirt with about 1/2" of water and lay a net over it so that some of the net is above the water. Eventually many of the worms, I am assuming the smarter ones, climb up the net to get out of the water. Now I am left with a worm infested net. I take the net and put it in my tank and the fish eat the worms from the net. It needs tweeking because many of the fish are afraid of the net, rightly so, so I will build something with net material that does not look exactly like a net. Maybe I will make it resemble a 1955 Oldsmobile or a shoe so they don't see it as a net. Or maybe I will just use a piece of net material.
So right now, the fish that are not afraid of the net (the stupid ones) are in the net eating the worms while fish like the copperband are hiding from the bad net.
I see a new mandarin feeding station coming soon