One of the ways I raise my worms is in 100 gallon stock tanks. My preference is to start with cinder blocks and a pallet on top of that. This elevates and makes for less bending over when feeding or harvesting. The lid doesn’t have to be elaborate and can be a piece of plywood laid over the top of your bin. For a lid like the one pictured, you will want to use the metal instead of the plastic version. The reason- heat is trapped by the plastic and raises the temps in the hotter months. The metal does a far better job of reflecting the heat. There are lots of ways to skin this cat and I encourage you to put you own spin on it. Look for things you have access to already and use what you already have laying around. You’ll be surprised what you can turn into a worm bed.
Stock Tank Worm Bed
Texas Jumpers 
With a bin this size can they survive summer and winter temps in central Texas? ( i.e. Austin)
Tony, yes the large volume means more bedding and that means more insulation.
I have an ENC bed in the same tanks. I was considering the blue barrel method to help cut down the amount needed for bedding. I live in Alabama. Having trouble with my ENCs dying. I think my bedding is to acidic and also discovered the laying mash had yeast in it. Do you have any videos or more tips? Trying to make a do at this worm farming. Thank you!
Troy,
One tip that might help especially with ENC’s, change bedding every couple of weeks. Left over laying mash will most definitely breed mites, in my experience. I have lost many bins of ENC and red worms due to mites. I have had much better results w/ Jumpers.
I appreciate it. Do you think I’m wasting space with my deeper beds? I thought it would help in hot and cold weather
No, you are correct. More volume in your beds = more insulation.
I appreciate it. Good Lord willing I’ll get everything figured out. May God bless you!
You are welcome!