API PondCare Liquid Aquatic Plant FoodFormulated to feed all floating plants, such as Water Hyacinths and stimulate lush green growth on all aquatic plants. Benefits bog and marginal plants, such as iris and lobelia. Will not stimulate algae blooms. Use weekly during the growing season. Floating plant fertilizer supplies plants with iron and potassium.
Add 2 tablespoons (30 ml) weekly, for each 60 US Gal (228 L) of pond water.