The Depths of Space is a heavily modified O'Neil cylinder where pods of uplifted dolphins, aquatic posthumans, octomorphs, and similar underwater morphs gather. The cylinder itself has a massive "ocean" in the middle of the cylinder, kept in by nanotech membranes and air jet currents from below. I'm looking for a way to keep a giant body of water floating in the center of a station of some sort with as least convoluted tech as possible. Recommendations welcome.
—"Ipsa Scientia Potestas Est."