I use CRYSTALYX® Stable-lyx® barrels with fly control for my horses. I do equine massage and barefoot trimming.. I love them!!! I can tell a big difference since using Stable-lyx® tubs. I always fed loose mineral, but I've seen a huge difference in coat and hoof health since using Stable-lyx® barrels!! I'm from Jamestown, ND and I get my CRYSTALYX® barrels from Chris at Miller Elevator in Hannaford, ND.