Which is a nicer t5 bulb UV 75/25 or ATI Blue +?

[American Flyer]

I am going to upgrade my Aqualife t5 fixture (4 bulb) from its stock bulbs to the following:

Front
UV 75/25
ATI Blue +
ATI Blue Special
ATI Blue +
Back

Potentially switch the UV and the ATI Blue Special

The combination recommendation is from the Grim Reefer (I think) on Reef Central. He says that you can potential swap out the blue+ with the UV. Does anyone know the benefits of using the UV instead of the blue+? My goal is to have a more natural looking light (sun).

 

[gweston]

I haven't used any of these bulbs, but have been reading up a LOT about them as I go over ideas for a retro hood for a 125 long.

Aquablue Specials are Blue+Full spectrum 12k daylight (essentially a 'white' bulb).
Blue Plus are Mix Blue with Actinic 03
Purple + are a red/purple bulb. More to bring out reds in corals. I suspect it may have less par, but I am not certain.

Popular combos seem to be these:

I honestly like the first option for a 4 bulb fixture.
For a 6 bulb fixture, I'd probably toss in Purple and a mid-day bulb in the mix.

*I'd guess this is high par white with a bluish tint.
ATI Blue +
ATI Blue Special
ATI Blue Special
ATI Blue +

*I suspect a bit less par, more blue/pink tone.
ATI Blue +
ATI Purple +
ATI Blue Special
ATI Blue +

*good par, broader balanced spectrum.
ATI Blue +
ATI Blue Special
Geisseman 6k Mid-Day (or other quality 'mid-day' bulb)
ATI Blue +

As with anything, it ends up being to one's taste. I ove the shimmer of halides... but I love the ability to mix and match different bulbs and customize with T5's. I am still torn.

 

[American Flyer]

Very informative. Thanks for the information!