I have some that I have no idea what they are... but the ones I know are:
-Caulerpa prolifera
-Suction-cup caulerpa
-Cheato
-Botryocladia "Red Grape Caulerpa"
-I think a type of red Gracilaria
-Lots of little types that have grown out of the live rock, and also some little patches of "maidens hair" that are left over from a chunk I had.
There is also some *shudder* hair algae and bubble algae. Unfortunately when trying to please the good you also get the bad!
-Diana