INNEED....If I were you, instead of just getting rid of the algae, I would also consider why the algae grew so quickly in your tank....chances are you did not get every last bit of the algae off the frag/plug/rock, and it may very well grow back...also, in the future you will be getting more stuff(you seem to be a big buyer of coral), and you will certainly get more algae on rocks/frags.....keep you water in check and the algae will not be able to thrive.