advantages. "It's a fact of life that untreated tap water can be dangerous for aquatic life. Chlorine and heavy metals create a hostile environment which can make your fish unwell. Chlorine Erase + removes these nasties from your tap water. It has added vitamin B + C which Boost fishes health.which keeps fishes healthy and diseases away. " Use in aquarium keeping. Use to treat fresh tap water before you add it to your aquarium.when setting up a new aquarium, doing a water change, topping up your aquarium or when adding new fish. Caution: Keep out of reach of children. Not for human consumption.if ingested drink water, seek medical attention immediately. If in eyes flush with water, if irritation continues, seek medical attention. Directions. Push 4 time Equal to (5 ml) per 50 US gallons (200 L) of tap water to remove of chlorine. To treat tap water for new aquariums or water changes. Expert Use. To treat live aquarium water: 1) push 4 time Chlorine Erase + Water Conditioner per 50 US gallons.Keep pumps running.