I Used The Geismann Bulbs Liked The Color And Growth I Had, I Had The 11k's And The Antic Plus, I Do Believe It's A 2-1 Ratio. Hof Carries Them And Use's Them As Well
The midday bulbs are 6500K (very yellow).
The AquaBlue+ are 11000K (crisp white). I know that's contrary to what the name implies, but they are a very crisp white.
ok here is how i had my 6 bulbs set up
geis antic plus
10k
geis 11k
geis 11k
10k
geis antic plus
i had awesome light spectrum coverage and tank was super bright with great growth and color. had the geiss 6k's { russ they dont have the 65k's their 6k's but didnt like the color, if i was after stright growth i would have used them