I have a 16 gallon Biocube tank that I just started I bought 20 pounds of live rock from Tampa Bay Saltwater and have had them in my tank for about 5 days now (waiting for my tank to cycle) however there is now a green algae growing on them that was not there before is this good or bad algae? I have been running my lights at a %100 for both blue and white. I have a Nicrew 100 watt LED light. I have done 2 %50 percent water changes since putting the rock into my tank.