Additional Details ------------------------------ Directions: Start feeding in the spring when the water temperature reaches 50 degrees Fahrenheit (10 degrees Celsius). Feed plants once a month until the water temperature reaches 70 degrees Fahrenheit (21 degrees Celsius), then feed twice a month. Stop using AQUATIC PLANT FOOD TABLETS when the water drops below 60 degrees Fahrenheit (15 Celsius) in the fall. Use one tablet for every gallon (3.8 L) of soil. Push the tablet(s) into the plant soil, 3 inches from the crown of the plant and 3-6 inches deep into the soil. For use in artificial, self-contained ponds only. Do not use in waterways, lakes, rivers, streams, or any ponds with outflow. Color: White Material: Plastic