Down to Earth 5-Pound Bio-Fish 7-7-2 7842 Bio-fish is granulated for easy application and slow release It enhances soil development by loosening clay soils to promote deep root expansion and better penetration of water and plant nutrients In sandy soils bio-fish improves nutrient content and adds humus to improve moisture retention Apply 3 to 6 lbs per 100 square feet 5 pounds box