Fathead minnows are commonly used as fishing bait but servce a dual purpose when stocked into ponds. They act as a supplemental forage food for all other species to jump-start your pond. Fathead minnows are sold by the pound. There are approximately 250 minnows in a pound. The adult fathead minnow will range from 2 1/2" to 3" in length. Fatheads are very prolific so usually only a single stocking is necessary. Fathead minnows may be introduced into a pond or lake in any season.