You keep them in chilled in RO in a refrigerator and rinse them daily by replacing the water. The low temperature slows down their metabolism significantly and they live for quite a while that way without feeding (about 2 months ime). I bought the keeper just cuz I use a lot and it's easier to rinse them.Thanks!
How do you keep them? When I used to have freshwater, I bought meal worms. Those only needed a potato that was sliced in half.
I see they sell a worm keeper, but do you have to feed the worms?