Thats a whole lot of light for a primarily fish tank. You could be looking at a serious algae problem down the road. Most people only use that much light for saltwater reefs or seriously heavily planted tanks, and with that much light on a heavily planted tank, you need to consider CO2, Potassium, nitrates, etc to avoid algae.
Is there any way to cut back the light? Unless you want to go whole hog into a heavily planted tank and all that goes with it, cutting back light might make the most sense. I'm assuming your 135 is the standard 6 footer. Double fluorescent strips(i.e. 4 x 40 watts) would be enough. Then look for plants that don't require lots of light, CO2, and nutrients to do well: java fern, crypt's, hygrophila, etc.