Aquatic pond plants need to be fertilized monthly to flourish and bloom profusely. At Dragonfly Aquatics we recommend Highland Rim Aquatic Plant Fertilizer tablets. Specially formulated for blooming aquatic plants, with a 10-26-10 nutrient ratio.Highland Rim Fertilizer tablets give your waterlilies, lotuses and blooming marginals plenty of phosphorus to produce the most spectacular blossoms possible. The large 10-gram tablets are safe and non-toxic. They will not promote algae blooms in ponds and they will not harm fish or other aquatic life. Highland Rim Aquatic Plant Fertilizer is available in packs of 12, 36, 80 or 300 tablets. Be sure to order fertilizer tablets with your next plant order.