Water Sprite or Underwater Fern is a water plant which float on the surface. But when we forced to held it down underwater will be grows unique leaves which are different from those it had on the surface. Young plants are grows on the leaves of the old one, and if they not planted it will take the same shape as those of the surface plant. Unless you have plentiful of it that you can afford to loose it, keep it out from snails as they eat it.