N.T. Labs Tap Water Safe 250ml No1

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.

Use when filling a new aquarium and anytime when adding fresh tap water i.e. during a water change. Also use when moving fish from one place to another: simply add to the transport bags.

Dosing Calculator - https://www.ntlabs.co.uk/browse-products/indoor/aquariums/tap-water-safe/