MARS FISHCARE N AMERICA INC. API Pond 16oz Chlor Heavy Metal Neutralizer — Single Unit

API® Chlorine & Heavy Metal Neutralizer 16oz - Treats 9,600gal Instantly removes chlorine and neutralizes chloramines. It also detoxifies heavy metals such as copper, lead, zinc, and other heavy metals found in tap and well water. Use this in freshwater ponds being filled for the first time, and when you're adding or changing water in an existing pond.