My tank has been perfect for 6 months, know I have found some cyano and green hair algae starting to gain strength at the bottom of my tank, The way I am going to fight it is for the next couple of months just do big water changing with RO/DI water every week, that is how I won last time, another thing I was thinking of was removing all the rock and vacumming the top layer of my sand off(debris and buildup), does anyone see any problems in these actions