What do you mean by health food store?
I use young coconuts from Thailand, real aloe, this special cactus, a raw evaporated crystallized cane with molasses in it for the clean feeding of bacteria, organic oats to feed fungus, and all the fruits and veggies make the castings, the milk makes the lactobacillus, the alfafa and medicinal inputs gets fed to the rabbit, all from the healthy section/store. Then any excess hits the outdoor compost, but they don't sell aeration, although maybe you can get them to import rice hulls, and they got charcoal and the seaweed flour could have dual-purposes too, lol, not to mention good water.