In yetex post....The large mushroom on that rock, what kind is that? Its like a purple color. I have the same one, and its only one of it on the rock. I have 130 watts of Powercompact light on it. Before i had just a fluoresent light on it and it stretched out and was like a brown color. Now its looks like yours. Does that mean its doing bettier cause its not stretching towards the light?