I have found frags attach and grow very well on rubble live rock. Even better than a virgin frag plug imo. Could this be that the live rock has the bacteria and algae on it the polyps are used to attaching to? idk
Polyps attached to a nice purple chunk of rock vs a white plug are more appealing to my eyes anyways.
Remember, the less you move your polyps around, the more growth you will see. :idea:Get them comfortable and then leave them alone. People wonder why they dont see growth on their polyp frags, and they move them around on a daily basis!