FOWLR Lighting Question

[E.intheC]

I've got a 90 gallon (standard 4ft) tank I'm trying to light appropriately.

However, I'm having trouble pulling the trigger; mainly because I want the following:

-Efficiency.
-Color.
-"Not too much light" (increase in algae/energy/operating expense).
-Sufficient light for coralline algae growth.

So far, I'm leaning toward a 2x54 watt Tek T5 fixture with either 2x ATI Blue+ bulbs, or 1 Blue+ and 1 Purple+.

What do you think? I'd appreciate comments on lighting and bulb choices. Thanks.

 

[E.intheC]

I've been told the blue+ and purple+ would be much too blue/almost an actinic look to it. Maybe -ll try out the aquablue and a blue+