Aquarium Pharmaceuticals - Quick Start Aquarium Cycler 4 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.
- 4 oz