Regarding the Microsorium pteropus Windel v sold by Tropica. It is a great buy, but the fish store is ripping you off by exploiting the plants' novelty. It is basically a tissue cultured plant with some mutation, either natural or induced. It has the same requirements as the original plant. Young plants can be propagated from the mature leaves. Wait around or source out different stores before committing $34 for a small plant.