Interpet 500ml Bioactive TapsafeMakes tap water safe for all fish. Adds beneficial bacteria to help maintain a healthy balance in your aquarium. Adds protective aloe vera to help care for your fish. Treats 4,500 Litre (989 gals) Instantly removes toxic chlorine, chloramine and heavy metals Interpet 500ml Bioactive Tapsafe is a must have for any aquarium enthusiast. This product is specially formulated to neutralize the harmful chlorine and heavy metals found in tap water, ensuring