Two Black Boxes vs One BB and Two AI Primes? 4 foot standard 75g tank

Vermontreefer

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Two black boxes or One BB and two AI Primes?

Wondering some opinions from experienced hobbyists, I’ve had my tank under two 165w black viparspectras for ~7 years and have grown everything I’ve added successfully, minus some proper coloration (Everything grows well but I feel like corals over time under these lights lose some vibrancy). I moved one prime from my fuge and bought another to place on either side of the centered BB. Spectrum is close enough for my liking, just wondering if this will provide enough par at bottom and top levels roughly for a mixed reef? Here’s the setup and my prime schedule (modified saxby, a lot of channels are hyper drived given the depth of my 4 foot 75g tank) I am also doing a 30 day 50% start intensity light acclimation

IMG_8087.jpeg IMG_8088.png
 

Rtaylor

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How deep is the tank? There are lots of par charts available for primes you can google based on tank depth.
 

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