Tetra's AquaSafe is a liquid water conditioner that quickly neutralizes harmful chlorine, chloramines and heavy metals such as copper, iron and zinc that can be found in tap water. It contains unique colloids that protect skin (for applicable species including aquatic turtles). Designed to be safe for use with fragile amphibians such as frogs, newts and salamanders, it is also appropriate for aquatic turtles, snakes, lizards and all ornamental fish. One teaspoon treats five gallons. Comes in a 3.38 oz. (100 ml) bottle.