Easy-Life Blue Exit Against Cyanobacteria is a powerful, safe, and easy to use liquid solution that eliminates cyanobacteria (blue-green algae) in aquariums and ponds. It contains an active ingredient that quickly eliminates cyanobacteria colonies and helps to prevent their growth. The 250ml bottle of Blue Exit is enough to treat up to 2500 liters of water and can be safely used on both freshwater and saltwater aquariums. It works quickly, but also has a long-term effect by preventing the growth of new colonies of cyanobacteria. This product is easy to use and does not require any special knowledge or equipment. It is safe for use around all aquatic plants and animals, and can be used on both new and established aquariums.