Houseplant Tap Water ConditionerSouthside's Water Conditioner removes chlorine, destroys chloramines, detoxifies heavy metals, & buffers pH. Is tap water bad for plants? Chemicals (used by municipalities to treat water) can kill beneficial. microorganisms in soil and damage plant roots. And some plants like dracaenas, ti plants, spider plants, prayer plants, calatheas, and carnivorous plants are just more sensitive to chemical exposure. Heavy metals may be a concern if you get water