Several colors of Coralline algae can be grown on the same tank raised live rock. Calcium is one of the most important things to add to your live rock growing tanks. Calcium levels in your live rock grow out tanks should be kept at about 400 mg/L at a specific gravity of 1.024. We have found that by using SeaChems Reef Builder and Reef Advantage in alternating doses in our make-up water we have had no trouble keeping both the calcium and alkalinity at the proper levels for rapid coralline growth. This simple method of treating our make-up water also keeps the strontium level in our grow out tanks high enough for the coralline algae to thrive.
ricky1414":y694gcqp said:it has been several weeks, and the corraline has not gotten any larger that the several little splotches that were on my lr when i got it from the lfs.