Chlorine & Chloramine (combination of chlorine & ammonia) are added to city water supplies to control bacteria and safeguard human health. These compounds are harmless to humans but when added to terrariums are deadly to most inhabitants. Repti-Safe 5 eliminates these toxic substances whilst protecting amphibians (frogs, salamanders etc.) by providing a protective coating rich in natural Aloe Vera and Colloids. Provides essential ions and electrolytes which assist in hydrating new animals.