This is the quickest method to increase all those desireable colors to your live rock. Purple Up encourages the growth of the all the desireable pink and purple coraline algaes on your rock.
By Carib Sea uses a unique dual method approach to coralline algae acceleration for your live rock. Purple Up immediately raises dissolved calcium levels in your aquarium water. It contains 10 micron aragonite that targets the live rock surface, delivering calcium, strontium, magnesium and carbonate right where it's needed.