How is the Eco Magic undergravel filter different from a typical undergravel filter?
• Rather than pulling water down into the gravel as a typical undergravel filter does, the Eco Magic filter moves the aquarium water up and through the gravel bed. This expels particles out of the gravel, maintaining a healthy gravel bed for bacteria growth and live plants to live in, while the outside power filter can mechanically remove these particulate wastes. • Why is fine sand not recommended for use with the system? • The system has been designed for optimal performance using substrate at a minimum of 1/4″. Finer grades of gravel, including fine sand, should not be used with the system, as fine sand will clog the undergravel filter and prevent the system from working properly. • How does the system remove nitrates? • The system’s dual biological filtration towers, in addition to providing the water movement for the reverse flow undergravel filter, also provide two types of environments for the colonies of beneficial bacteria of the Nitrogen Cycle to live. The gravel bed of the u
