Need help choosing last bulb

[Kxracer704]

I am finishing up my 75g mixed reef build and i need help choosing my last lamp. I want to start out by saying that I got a Nova Extreme 4 bulb t5HO given to me. The bulbs need to be replaced so I am buying new.

I want more light so I am going to add an Aquaticlife 2 bulb t5HO behind the Nova on the tank. So with that I wanna try and keep and use the fresh new bulbs that come with the 2 bulb t5.

This is what i have come up with so far. BTW I want good growth and somewhere in the 14-20k look.
The #1 bulb will be in the front and #6 in back

any comments and changes welcome. thanks

nova 4 bulb
1. Giesemann actinic plus 450nm
2. Giesemann actinic plus 450nm
3. Aquaticlife Actinic
4. Giesemann Aqua Blue 15k
aquaticlife t5 2 bulb
5. aquaticlife 10k
6. ??

 

[Reefers Digest]

UVL Actinic White

It's about 12K and really pulls out some of the reds and purples in your tank.