Camera shots with LEDs tend to be bluer and you really have to look at the spectrums in person to figure out what you prefer.
This is not 100%. I have to run 50% because I have 3 fixtures. I’m at 450PAR (mind you higher PAR using a heavy blue is more sensitive to coral than whites) at the top rocks and 250PAR center sand (180PAR in corners). 100% would just be brighter. I also took PAR readings to run 10k spectrum and I needed about 65% overall intensity since there’s less whites.
Figure out what you want to run at your peak schedule and then choose your fixture. Pro and Blue all can run the same spectrums, but at what PAR is the difference. Regardless of blending spectrums in your scheduled, if you know you’re going to run high PAR for your peak schedule in AB+ get the blues. If you’re going to run high PAR in your peak schedule with whiter spectrum, get the Pro. That way you’re being efficient with your fixtures and not over driving one set of LEDs to get your preferred spectrum.