Damp Spagnum Moss from a garden centre keeps worms in pristine condition for a few days if not a lot longer.
They use it for lining hanging baskets and it’s quite cheap to buy.
If I want a continual supply of redworm or dendro’s or lobworm I fill a large bucket with alternate layers of soil and Spagnum moss and keep a few slices of apple and a few potato peelings on the surface, and store it on my garage floor where it keeps nice and cool. The larger the bucket the better it is.
Every few months I refresh the contents with fresh layers of soil and Spagnum Moss.
I’m not sure why but don’t ever return any broken worms to your wormery as that is a sure way to kill off the rest.
Whenever I need some worms I just temporarily remove some of the slices of apple and potato peelings and there will usually be lots of worms that were all feeding off the apple slices and.potatoe peelings.
I decant out of the white tub they come in into a black Drennan tub. I then feed them mash when we have it, banana, cucumber, or used tea bags. I store the tub in a dark corner of our cellar on a cold floor
@Dave just ordered 50 for the Aire next week. Either two days in Bingley or I might have a day in Leeds near Whitehall Quays or below at Direct Line