I'm not sure if this Pellia plant is Monosolenium tenerum or Endiviifolia, but they do look similar. I never tried to keep this in my tank, as - with the plant twisting and making it difficult to tell its topside from its underside- it can be quite hard to successfully tie on to driftwood. I did however, prove some of this type of Pellia was aquatic by keeping it in a plastic container for 2 weeks ... and it appeared to be growing nicely, sending out new shoots & spores. These pics are of an emersive form.