I have a ton of algae in my tank... have a 75g..einning 6 T5s...4 blue..1 purple and 1 white.. I know if you run lights to long you can grow algae..but I'm only running them about 8 hours.. is the white running to long or is there a problem with something else ? ? It's all over my overflow column and back wall...and my powerheads. its so much that some of it looks like hair...also is this bad ...because it also has little bubbles sticking to it?