Wrong Light?

Will adding the wrong spectrum of light increase yield during flowering? I'm less than two weeks into flowering under a 400w 2100k hps. I have a 125w 6400k blue spectrum cfl lying around, it's completely the wrong spectrum I know. Is it worth adding it and will it increase my yield enough to justify hanging it up?

I would give it a try I don`t think it will harm anything.

more light is alwys better no? just use them near the bottom of the plants i guess if u see any places the hid isnt getting the penetration to