I've got a 10 gallon planted tank. It has been set up for almost 2 years. I've noticed algae on the walls of my tank, and on my plants' leaves. I'm going to try 2 and a half hours of light in the morning, then off, then 2 and a half hours at night. If this doesn't work, how else can I control this algae? I've tried scraping it off, and I can only get it off the glass- not the leaves. Any advice would be greatly appreciated, thanks in advance!