I have been running two worm bins with success and have used them myself making my own potting soil and found them to be vary good for plant health and biology. They even helped get rid of gnats there was so much biology in it. I have aged and new castings. The amount I have I would describe as 6 25 lb sacks worth in different storage types. Fed them what I eat Brown rice, lots of coffee and tea, peanut shell powder ,beans , Banana peel, potatoes gypsum and small amounts Diatomaceous earth for a silica boost , wheat oats. no salts Brown paper, cardboard no gloss printed paper some garden leaves but not much at all sphagnum moss bedding Potting soil with rock dust. A sardine now and then. So these casting have silica, potassium and phosphorus magnesium calcium as well nitrogen from bean etc. Good time to mix up some soil and let it cook. Tell me what you need or make an offer of just say your interested and maybe you will get back to me. Its in Monterey. The really aged stuff is in storage some prefer it well aged. I made potting soil from fresh stuff but let it cook. I think this is as close to high end castings as you can get. Fresh casting will inoculate dead soil aged castings have better humus content. I can drop it off if its near by. You could make 100s of gallons of potting soil. 10-20 percent casting, 1/3 sphagnum 1/3 aeration like perlire or rice hulls, Gypsom 10 grams per cubic foot, Lime 40 grams per cu foot. for proper ph balance with sphagnum. The biological inoculation from casting will regulate the PH natural afterwards. This would make an ideal potting soil for seedlings. Add some bat guano kelp meal and some fish bone meal etc and you have a super soil Better than Fox Farm soil. You can also inoculate an entire field with worm casting tea.
