API TURTLE SLUDGE DESTROYER cleans your aquarium or vivarium using beneficial bacteria, which breaks down organic waste and debris to reduce maintenance and establish cleaner, clearer water. Product also helps eliminate odors from your tank. Add 1 ml. per 2 gallons or 1 tsp. per 10 gallons of aquarium water. For best results, dose weekly, or when performing a water change. For extremely dirty vivariums/aquariums, dosage may be doubled.