FishScience has designed AlgaeClear a water treatment formulated to help prevent and control any brown and green algae from forming on the glass, decorations or hardscape. When used at the earliest signs of algae development, AlgaeClear helps limit the spread of nuisance algae while supporting cleaner aquarium presentation and improved visibility throughout the aquarium. For ideal results, this formula should be used alongside your regular aquarium maintenance. As algae grows from nutrient imbalance, excessive lighting, and organic waste accumulation, staying on top of your water changes and cleaning will help fight the algae problem. After treating your water, it is recommended by FishScience to top up your beneficial bacteria within the filter, especially with a large water change while doing the treatment. Product Highlights: Helps control green and brown algae growth Suitable for glass, décor and ornamental surfaces Supports cleaner aquarium presentation Helps improve visibility and aesthetics Ideal at the first signs of algae development Best used alongside good aquarium maintenance Freshwater aquariums only Product Instructions: Dose 5ml per 25 litres. Repeat after 2 days if necessary, up to a maximum of 2–3 treatments.