Heya out there Two things I'm curious about: Was just talking to someone who raises chickens about 'nutrition': First thing is that he said that offering aragonite is better than oyster shell for calcium...that it's more easily absorbed. Anybody out there using / know about aragonite as a source of calcium? Second: He thought calcium deficiency might be an element to feather picking/eating...which I hadn't heard before.... Wondering what y'all think.... Thanks!