I grow 2 kinds of Taro, Black Taro, and Green Taro. Both will survive a wide variety of conditions, as long as temps stay over 50. The Black (really a very deep purple) lives as a marginal in my pond through the summer, goes inside for the winter. The green is used as a potted plant, outside summer, inside winter. Either will accept direct sunlight, or deep shade, or anything in between. Just keep their feet wet and they're happy. they do attract Aphids. I have never tried them submerged, but a hunch would say they'd survive a while, then croak.
90 gallon, flourite, HP Co2, jobes sticks, Leaf Zone. 440 watts VHO lighting, home built canopy.