new bulb placement

[michelleolds]

i have nova extreme t5 4x54 watt. i am replacing my bulbs. i noticed that the bulbs that it came with are placed with the 2 blue bulbs on the outside and the white ones in the middle. should i put the replacements in in this same order? i was wondering if maybe i should put the white ones toward the back since most of my corals that require really good lighting are on top of my rocks which are towards the back of my tank.

 

[rmeaux]

with a 4x54 you have like a 9 inch span of physical lights. Not sure if moving a light 2-3 inches horizontally to the back would make a big difference. IMO.
Also does that fixture have 2 switches. If that is the case i would leave your dawn dusk option available especially if you do it currently.