I have two Led Blue Moon lights and they are awesome. They make my Silver Aros look absolutely stunning, and when i had my Reticulated Pimelodid, the second the blue came on he came out hunting. It is a great way for me to watch my many plecos, and calms my aro's so that I can come right up to the tank and they don't care, even my sons fast movements don't spook them.
IMO Blue Light all the way