I had read your article on the leachate. So far no moisture. I plan to have enough scraps through the summer from our garden. But come Fall will probably need to supplement.
Do the worms climb up through the holes to the next tier or do I move them?

I wrote about my first week of orm ranching on my blog. I will share the link for your amusement.
Mike

First off, you should not have any run off from your worm bin otherwise it is too wet.

Usually you would setup the bottom tray to start with. Once the material is converted to worm castings, you would setup the next tier on top so the worms over a period of time can migrate to the next level.

Any brown cardboard that is not shiny or waxed is fine.

As for worm food I have a simple recipe here or you can order some Purina Worm Chow which is better for fattening worms as well as offers vitamins and minerals for your worms.

You need not puree the scraps however they can break down faster. One trick to assist in the break down is to freeze your food scraps, thaw them out to room temperature and feed your worms.

Bruce