I've been battling a bit of algae in my 10G NPT for a liitle while now, but have no idea how to get rid of it or what kind it is. I can rub it off the plant leaves and it comes off very easy, but my substrate is another story. It's on my sand and I don't know what to do. I can't stir it for fear of uprooting plants or getting too near to the soil. These are the best pics I could get.
edit; I've also lowered my lighting from 10hrs a day to 8 hrs.
Lighting specs: one 23W CFL bulb 6500K
Any help is appreciated!