Every time The Mr. and I go to Ikea, we pick up one or two of those little bamboo plants – the kind that come with a water container like the one florists use. They look very much alive when we buy them. We bring the little bamboos home, put them in a vase with enough water to cover the roots, and they die within two weeks.
Fluoride is lethal to most plants over long periods of time, I would be more worried about the process that is used to filtrate the water you are buying, I know for a fact that some forms of purification can actually increase salts, which, will also kill your plants.