Quick Start Aquarium Cycler 16oz

Aquarium Pharmaceuticals - Quick Start Aquarium Cycler 16 oz. Allows instant addition of fish. Limits toxic ammonia & nitrate. Contains live nitrifying bacteria. Shelf life of 2. 5 years, no refrigeration required. Use use when adding fish, changing water or filter media, after medicating or whenever ammonia or nitrate are detected. For use in fresh or saltwater aquariums. 16 oz