Breeding night crawlers?

[Lilibugz]

So the pet shops near me don’t always sell live worms which is my newts main food as of now. They have frozen bloodworms I’ve given as a treat but they don’t have any form of blackworms. So I usually just go to the local bait shop and get my worms there. I throw some veggies/fish food in the container to try and up the nutrients.
I’ve been thinking about just starting a compost bin though. I used to use a 5 gallon bucket with holes drilled all over for drainage stacked in another bucket to compost food scraps and such. I was doing this to get some nice fertilizer and reduce waste not breed worms haha. Do you think the worms would reproduce fast enough for me to have a good supply of them for feeding? I usually feed Canadian night crawlers but I’m open to suggestions if there’s a better species to use!

 

[JM29]

Canadian night crawlers (Lumbricus terrestris) is well accepted by all caudates but rather tricky to breed and raise because it's a full soil inhabitant.
European night crawler (Dendrobaena hortensis) is one of the species easy to raise in a compost bin but it is not always well accepted by caudates.
So, try to propose some to your newts before beginnig to produce them.