Has anyone tried parboiled rice hulls in a well-draining mix? I like that they're cheap and sustainable and the high aspect ratio can make for tremendous air porosity which could make them last several years. Also, if you homebrew they're invaluable for sparging wheat beers which can turn to porridge during mashing. _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net https://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> PBS Forum https://…