I've been meaning to swap some bulbs around...
Old arrangement (all ATI):
Blue+
Blue+ (dusk/dawn bulb)
Coral+
ABS
Blue+ (dusk/dawn bulb)
Blue+
New arrangement (all ATI):
Coral+
Blue+ (dusk/dawn bulb)
Blue+
Purple+
Blue+ (dusk/dawn bulb)
Coral+
I wouldn't call it "natural" looking, but it seems easier on the eyes. I haven't run a purple bulb in many, many years - I used to think they looked way too pink, but today I'm liking it. Go figure. I'll see how things adjust in the next month.
I'm also thinking I'll buy a strip of blue LEDs soon. The plan from the beginning was to run the ATI dimmable 6-bulb that I have now, and a strip of ReefBrite XHO blues on each side of the ATI so I could get the blue from the LEDs and run more "white" bulbs in the ATI so I can get the most PAR out of it. A local buddy here tested some XHO strips in the LFS (I'm guessing they are 24" from the surface) and he got some wild PAR numbers - in a plot you could see where every LED was above. Major hot spots, and that's 24" high! So I'm rethinking this plan. I've heard people say the ReefBrite Tech strips aren't so bad because they use more, lower wattage diodes. That makes sense. I'm thinking though, that I might want to pick something with optics on each diode. I know a local guy that would build me a custom strip if I wanted. Maybe I'm being fussy. What do you guys think?