Contains both API Goldfish Cleaner and API Goldfish Protect. API Goldfish Cleaner: Simplifies the chore of maintaining Goldfish by helping to clean a dirty Goldfish aquarium or bowl naturally. Key Features: Helps keep gravel clean and removes organic sludge Works naturally to break down solid fish wast Helps reduce toxic ammonia and nitrite by boosting the effectiveness of the biological filter in established aquariums Use with your weekly water change for a clean & healthy environment. API Goldfish Protect: Makes tap water safe for Goldfish. Use when starting up a new aquariuma dn wehn water changing an existing aquarium. Key Features: Removes chlorine and chloramines Detoxifies ammonia released by Goldfish Enhances the protective slime coat of fish Contains trace minerals for fish health