The light definitely enhances what's there, but a pale fish still looks pale. I picked out very red parrots I don't really need to use the special light but I really enjoy the effect, makes them glow.
It's very relaxing for me and even with the brightness of the red, Im able to enjoy it. I would like to add a fish with pearls, I saw a small red Texas at a fish store over the weekend I'll probably go pick up.