What size is your tank--10g? Using both of those bulbs is going to give you at least 20 watts, maybe a few more, I forget whether those are 10 or 13w bulbs. Thats a bit on the high side for "low-tech" tanks, and you might end up having algae issues. If that does happen, I'd recommend picking up some Flourish Excel, doing a partial water change where you remove all the algae present and adding a few more plants, then starting with the Excel. Every day isn't really necessary, several times a week--adding it when you first turn on the lights in the morning, should take care of it (you'll also end up with some really massive plant growth, heh).
How's this for muchness?