Very interesting, I wonder what it is.I'd guess your lights are probably fine.
My coraline algae started about 4 months in - little itty bitty spots here and there on the rocks. Nothing on the glass. But it never really grew much - just dots. Then I battled dinos for what seemed like forever, and frankly nothing was growing well during that time. But then it just exploded, starting sometime around the beginning of april. It's growing in spots that are only about 100 PAR. Now it seems to grow everywhere - EXCEPT, above the water change line, on the glass.