Haquoss L2 is a product specifically designed both for the decomposition of organic sediments on the bottom (food scraps, fish feces, rotten leaves) and for the start of the nitrogen cycle during the first installation of the pond. It contains natural aerobic bacteria with high mobility and anaerobic bacteria with positive chemotaxis (translation movement of unicellular organisms due to a chemical stimulus) that recognize both chemical and organic waste, both always present at the bottom of the pond. At the same time, the water is cleaned significantly and at the same time the dissolved oxygen content increases. With regular use of this product, a high reproduction of bacteria is guaranteed with consequent continuous cleaning of the pond. Haquoss L2 START&CLEAN is essential for partial water changes during the summer season, in which it is recommended to combine it with Haquoss L1 CONDITIONER (bio-air conditioner) both for changes and maintenance. Harmless to fish, plants and crustaceans. DOSAGE: Shake well before use. NEW WATER: 1 cap (5ml) every 50 lt. PARTIAL WATER CHANGES: 1 cap (5ml) for every 50 litres of water replaced. MAINTENANCE: 1 cap (5ml) every 100lt once a week