My tank is having really really bad algae problems.. It's a 5G, moderately planted with crypts, no livestock as of yet. I have a 11w flourescent light on for about 12 hours a day. The crypts are planted in soil topped with gravel and I don't dose fertilizers. I have a DIY CO2 system I set up about 2 weeks ago, in the hope that providing more CO2 would encourage my plants to grow, outcompeting the algae, but no such luck! I have brown algae that keeps coating the leaves of my crypts, I have to rub it off 2-3 times a week Light brown and green algae covering the glass, again, I wipe this off Heres the scary part - dark green/black algae growing on the bottom of the aquarium that goes from being on the bottom to covering entire plants in a matter of hours! I have no idea how to get rid of any of this stuff, i'm very new to this and need some help!