This conversation is much better
Lap-
Do you add anything for your pH, i'd bet that it is pH of 8 because of calcium carbonate. Have you been doing anything to lower you pH? Or do you just let the water sit in a reservoir for a while?
Weird-
I definitely don't overfeed. I'm probably one of the few who underfeeds, and then tries to make up for it.
My real question to you (other than your soil mix) is, are those red wigglers or earthworms from the backyard?
I will answer this question from my own experience. In containers i have that are over 5 or 6 gal US i have/had both red wrigglers and larger earthworms populations. For the larger worms populations is a bit misleading. Probably no more than a handful of the big ones can inhabit a container that size. I would feed them the same way people feed their pets. Every week i would have pulp from making apple cider vinegar or shredded slightly fermented banana peels and bury some of that under some of the mulch.
Low and behold within a few days all the food is gone and i am left with a pile of worm castings as well as excellent aeration from the semi-persistent tunnels they leave. Not to mention the buffering capacity of the calcium carbonate in worm castings as well as an abundance of beneficial micro-organisms. The CaCo3 buffers on it's own, but the bacterial polysaccharides also have buffering capacity alongside binding soil particles together.
Natural doesn't mean it isn't complex. It just means we want to leave those tasks to the organisms best suited. Worms love drilling holes and eating bacteria and leaving me with all those benefits that otherwise people use chemicals, tilling, etc to achieve.
Nature. What won't it already have answers for next?