Late I know, but that's definately too much light, especially if they're directly over your aquarium. I only have a two bulb fixture over my 55 gallon, and I was still dealing with some algae before I left. That's with the fixture 20" above the top of the tank.
1. Watt [ wot ]: noun -- the SI unit of power, equivalent to one joule per second and equal to the power in a circuit in which a current of one ampere flows across a potential difference of one volt.
2. Per [ pur; unstressed per ]: preposition -- for each; for every.
3. Gallon [ gal-uhn ]: noun -- a common unit of capacity in English-speaking countries, equal to four quarts.
What does this have to do with growing plants?