Product Highlight(s):Contain macronutrients and essential trace elements.Continuously releases plant food tabletsGreat for water lilies, lotus, and irisDesigned to be placed directly into the soil of potted plants PondCare? Aquatic Potted Plant Food Fertilizer (25 Tablets) Provide essential nutrients and trace elements needed by pond plants to ensure non-stop blooming. Tablets contain iron for lush, green growth and boron to promote flower formation. Keeps water lilies blooming all season long. Stimulates lush foliage and beautiful blooms of all aquatic pond plants (hardy & tropical plants and marginal and bog plants).