One other suggestion that has worked for me is placing you lights on a timer. It gets your p's into a routeen, my p's dont even flinch when the lights come on and I dont need to dim the lights anymore. I also use the 50/50 lights which are a little dimmer and really bring out the color. they are 1/2 sunlight and 1/2 blue light.
I tried the 50/50 and it seemed to freak them out even more than the regular lights do. Just my experience with it. I wrapped mine wiht electrical tape like suggested and the light doesn't bother them at all. I only use 1 48" bulb at a time and its enough to light up the tank to take great videos as well.