Boyd Enterprises Chemi Pure Elite GrandeAbout the Product: Boyd Chemi Pure Elite features the same powerful filtration media as the original Chemi Pure, but with added ferric oxide to remove phosphates, silicates, and red slime (cyano bacteria) for cleaner, clearer water. It also supports aerobic bacteria growth and removes dissolved organics in all aquarium types. Chemi Pure Elite's unique formulation enhances aquarium health and supports longer fish life. It helps eliminate foul odors,