Stimulate growth in hard and soft corals with Kent Marine Coral-Vite Vitamin & Trace Mineral Reef Aquarium Supplement. In the ocean， corals and other aquatic life receive nourishment and nutrients from a number of different sources to grow and stay healthy. Kent Marine Coral-Vite Vitamin & Trace Mineral Reef Aquarium Supplement provides exotic trace minerals and complex nutrients for corals， anemones， gorgonians， and desirable marine algae that mimic what they'd receive in their natural environment. It contains no detrimental heavy metals， gluconates or other sugars， phosphates， nitrates， or silicates that can promote undesirable algae growth.