envii Aquarium Klear - Natural Bacteria Clears Green Water Treatment, Crystal Clear Fish Tank Gravel Cleaner, Prevents Growth of New Algae - 500ml Treats 4,000 litres

Clears Green & Murky Water in Fish Tanks - Aquarium Klear contains billions of beneficial bacteria to clean green & murky water in fish tanks for crystal clear water. Safe for All Fish & Aquatic Life - Containing only natural ingredients, our aquarium treatment is safe for all fish & aquatic life including. Reduces Filter & Tank Maintanence - Naturally removes excess fish waste, fish food & harmful toxins. This ensures your filters run efficiently meaning less cleaning, tank maintanence and happier fish. Easy to Use - With a built-in measuring chamber, each treatment can be accurately measured and used with ease. Simply add 5ml of Aquarium Klear per 40 litres of fish tank water. All dosage instructions are on the bottle. Treatments - 500ml bottle is enough to treat 4,000 litres of aquarium water. This gives you multiple treatments to last up to 12 months.