Hey guys! I went to the LFS to buy some calcium to stimulate the coralline algae (at the suggestion of a friend) and the guy at the LFS told me to buy Purple Up so that it would only stimulate the coralline and not other algae that might be in there. He told me to wait until the end of my cycle before putting it in the tank. Should I wait like he said or should I add it so that it can grow at my friends suggestion? What are your thoughts? BTW I have been cycling for just over a week and I have about 40 lbs of base rock and 10-12 of live.