A natural by-product of the fishing industry fish bones are cooked and ground to create a high phosphorus fertilizer perfect for flowering and fruiting plants. Fish Bone Meal has replaced steamed Bone Meal in all of our Down To Earth Fertilizer Blends. Free of preservatives. Application Rate: Apply 3 to 5 lbs per 100 sq.ft. Additional application rates included on package. Available in 6 lb boxes 25 lb bags and 50 lb bags.