Cascade Koi & Aquatics have sold NT Labs products for many years and we stock of the products by NT Labs across the range. NT Labs Tap Water Safe is suitable for coldwater & tropical aquariums, it removes chlorine, chloramine, heavy metals and reduces stress. Tap Water Safe removes chlorine and other halogens, chloramine and heavy metals found in tap water which are toxic to fish. Tap Water Safe also contains a special protective coating that reduces stress caused by transportation of fish. If adding fish to your aquarium or carrying out a water change use in conjunction with NT Labs Filter Starter to help your filter cope with the increase in fish waste or replenish the filter’s bacteria.