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.