2014/10/15/ · I filled it 2/3 full with 6-7 5 gal buckets of soil, 1 gal of food scraps, 1/2 gal of cow manure, 1 gal of horse manure, a bit of sawdust, and hedge clippings run thru a wood chipper. My red worms thrive!! of course I add food scraps, 1 gal coffee grounds every 10 days, and turn the soil twice a week.