(Farnam) Sand Clear is a highly pure psyllium seed husk in an easy to feed crumbles. An apple and molasses flavor makes it very palatable and well accepted. Absorbs water in the intestines to form a gel-like substance to remove sand from the intestines, to help prevent costly sand colic. For 1,000 lb. horse feed 1 - 5 oz. scoop daily for 1 week out of every month.