Hi Elaidlaw, I don't know if I said 'welcome to the forum' yet ?

I'm not seeing a picture...?



Most folks are using 'agggeregate ' of 3/4 inch....smaller 'can' plug up faster.
Two thoughts on your worms....I wonder 'if' the lava is too rough for them ? Also, I wonder 'if' they had enough to eat ?
I've seen where people add feeding stations to the beds. A piece of pvc pipe placed vertically into the beds....which has holes in it. They drop veggies and stuff for the worms to eat. Banana skins are a great way, to get the worms to help add potassium.

Since your a school teacher...I better use my spell check.....