Prerequisite for a functioning "ecosystem Aquarium" is a holistic approach. Biological cycles, in which nutrients, carbon dioxide, plants and fish are involved, should be adjusted as naturally as possible. The Dennerle products form a coordinated system that helps your underwater landscape is safe and easy to maintain. We have it looked natural on the finger and 7 Rules for a functioning aquarium set up.
Whether light, water quality, sand, filtering, fertilization, CO2 - each of these sub-areas is vital for an aquarium. Crucial for the functioning of an aquarium is alone that all factors, aids and appliances fit together and complement each other.