I am assuming you are going to use 2 15 watt bulbs, since a hood that holds screw in bulbs, holds 2 of them. That would give you 30 watts over the tank, or 3 watts per gallon which would be like medium light over a 10g. That would give you alot of plant choices and if you have enough plants in the tank, you won't need CO2. If you use that lighting and only have a couple plants, you will run into algae problems. I suggest getting atleast a couple different stem plants so they will grow fast and outcompete the algae.