First par measurements.. thoughts?

[ArnoldosAquariums]

75G tank. Using two AI 32HDs with a modified plan based on David Saxby’s reef. I’ve attached a photo of my light settings + par at various outputs.
Does it seem too low at the sand? Is a 300 drop from right above the water to right below it right? In almost every spot, the numbers jumped +/-15, so I wrote down the most common # that seemed in between.

 

[ArnoldosAquariums]

Forgot to mention...

At the peak settings were at

UV 52%
Violet 96%
Royal 100%
Blue 100%
Green 7%
Red 9%
Moon 0%
CoolWhite 27%

 

[dbjonesjr]

Looks to be what it should be.

 

[ArnoldosAquariums]

Looks to be what it should be.

I literally adjusted this by eyesight alone before using the par meter.. so that really means a lot if it looks good!

 

[dbjonesjr]

I literally adjusted this by eyesight alone before using the par meter.. so that really means a lot if it looks good!

Just depends what corals you plan on keeping! I keep most lower light corals in 75-125 PAR. I try and keep the top third of my tank anywhere from 200-300 PAR. This might not be necessary for you if you aren’t keeping any high light corals yet. But I’d aim for 300 PAR at the top of your scape and then just see where everything else falls if that’s what you’d like. Just remember, too much light kills faster than not enough.