Another boring lighting question - advise needed

I have a 1000 liter tank that is 1m deep. No plants(only fakes) this is mainly a predator tank. Currently i have 6, 5 foot T8 lights 3 white 2 blue and 1 red. The tank looks dull on the bottom and the back of tank, so i thought maybe replace the color lights with white ones, will this make the tank more bright or must i go the T5 route because of depth.



This tank is at my office so unfortunately there is a lot of reflections.

Regards

Fonkie

 

sheez that is a deep tank,i dont envy the person who has to clean that glass inside.for that depth you would need halides to penetrate to the bottom but then you gonna have algae problems.