Most N. American species of Equisetum (horsetail, snake grass, or scouring rush) are marginal plants (although some species are semi aquatic), that prefer wet, sandy soil. Most species in N. America are perennials and thus not only die back during the winter, but actually require a cold treatment period in order to thrive. They will tolerate being submerged or semi submerged for short periods of time, but will not tolerated being fully submerged for an extended period. There are a few evergreen temperature species such as the variegated and dwarf horsetails, and some tropical species which are also evergreens. The evergreen and tropical species may be usable in a paludarium type tank, but none are suitable for a regular aquarium. I've had no luck with the local temperature species even in paludariums, they do well for a short period, then die out.