Thanks for the input everyone. I'm planning on using the following bulbs in my 8 bulb fixture:
1 Kz Fiji purple
2 Giesmann Pure Actinic
3 15K
2 22K
I may swap out a pure actinic for another 22K bulb if I don't like the colour and to increase PAR a bit. I am still undecided however if I should go with the 3 15K bulbs, or 3 DUO bulbs. I want to achieved the same colour as running equal amounts of ATI Aquablue specials and ATI Blue + bulbs. From looking at the last picture posted, I can't really see the difference between the 15K and the DUO bulb. Any suggestions based on the above bulb combo?
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Do or do not....there is no try.
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