here is a pic of the mystery plant. razor caulerpa? perhaps. the name would be appropriate.
it has gone sexual once on me, it all went kinda brownish, then the water went cloudy for a day or two, but it seemed to clear up on its own. i am a plant person and like the idea of having plants in my tank, the local pet guy told me this was a marine plant, one of theonly ones able to be kept in marine tank.
here is the pic........
it hasn't seemed to take over, i'd like to keep it, but admittedly am a novice......perhaps it should go til i have more experience?