Feed your aquatic plants to maximize beauty and get the most from your plant investment. These plant food tablets were formulated to feed all pond plants while minimizing the releasing of chemicals into the water that would encourage algae growth. Safe for use with fish when used as directed. Directions for use: Use one tablet per gallon of soil each month during growing season. Push tablet 1 finger deep into the soil, 3"" from the crown of the plant. Press soil around the inserted tablet to prevent fertilizer from being released into the water.