Trust me, the dechlorinator will save you hundreds of dollars in distilled water. Besides that, you don't want to use distilled for your frog to soak in. Distilled water has zero minerals in it, and frogs need minerals and such. They get them via soaking thru their skin. Spring water ($$$$) or dechlorinated tap water is best. The dechlorinator is like six bucks and it only takes a couple drops to do a whole gallon of tap water. Totally worth it and absolutely necessary.