Anyhooooo,
back when I had my 4x39W Teklight my bulb arrangement was this:
FRONT
G-man actinic
Coralvue 10K
Coralvue 10K
G-man actinic+
BACK
The Coralvues are kinda crappy and yellow but I guess the got the job done and they're cheaper. G-man's are good bulbs and I think offset the yellow of the coralvues very well.
That Grimreefer's thread that you linked previously contains a wealth of information if you have the patience to sift through it.
I'm now using 3x175w MH w/PC actinics over my 6-footer. I plan on switching to an "overkill" setup using 250w HQI (XM 10K) with 2x80W T5HO (G-man actinic+) and 2x160W VHO (UVL super actinics) in the very near future. I hope to get the best of all worlds with this setup: the PAR and penetration of the 10K MH bulb, the blue spectrum of the T5 and the actinic pop of the VHO.
For the record, the had the T5 bulbs in the teklight for almost 18 months without changing them and I did not notice any noticeable degradation in light output/colour over that time and the corals (LPS/softies) did not seem to "sag" at any point.
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