I had (2) 15watt lights on in addition to the satellite, but it just got to be a pain to get into the tank and the canopies were always water stained (not like I'm cleaning them every day) ... but since I don't have any jumpers (to my knowledge), I was messing around with moving the satellite into the middle of the tank (instead of in the back with the 2 15watt lights in the front) and I think the tank looks much brighter and better.
thanks for the advice, maybe I'll go track down the lumen ratings for the lights I have in there ... could you point me to any resources that calculate light amounts based on lumens instead of watts? (is there even such a thing?)