Do bulb placement matters?

[typicaltony]

Just wanted to get some opinions, right now I am running a 6 bulb ATI sunpower fixture. My new ATI bulbs just arrived today from Reefgeek so very excited to try them out. Just wondering does the bulb placement on the fixture matter when it comes to getting the colors you want?

Right now I'm running it as followed...

Rear
Blue +
Blue +
Coral +
Purple +
Blue +
Blue +
Front

I think it gives me a 15000K-18000K look, I want a 20000K or higher.

I was also thinking of doing

Rear
Blue+
Blue+
Coral+
Blue +
Purple +
Blue+
Front

or

Rear
Blue+
Coral+
Blue+
Blue +
Purple +
Blue+
Front

Any thoughts?

Also thought about switching out one of the Blue + for a True Actinic bulb to maximize fluorescence in the corals. Good? Bad?

 

[ifarmer]

an actinic definitely gives the pop on the coral. If you have 6 or more bulbs fixture, I would suggest running with at least one actinic.

 

[typicaltony]

Thanks, ill probably give it a try.