I just received some buce from online and I noticed the rock wool holding it has some Cyanobacteria on it. The actual leaves have none but I don't know whether to risk having BGA in my tank by letting a small amount get through. What would you do?

My 75g had been running on only .5W per gallon until about a week ago. I upped the lighting to a little over 2W per gallon and I have begin to notice the tiniest bit of BGA cyano on pebbles and actually under my sand on the glass. I assume my new lighting has caused some sort of imbalance that I...