4.6 wpg over a 10 gallon is not exactly high light...the wpg "rule" breaks down for smaller tanks.well right now I have 2 23 watt CFLs over my 10gal. So I am probably in the high-light area. I am using Excel atm, do you think I should move over to C02?
I have java fern, anubias nana, ludwigia rotola, wisteria, camboda, and anotehr foreground plant that I have no idea what it is.
If your plants are growing nicely and you have no algae problems, I see no need to switch.