I run 3 of these over my 120 which would have similar light density. Here is the QR code you can scan into the app for my settings:
This is what I run my lights at. I'm getting close to 400par at the top of my rocks and around 200 on the sand, but I measured that with a SenEye, so take the numbers for what they are worth. However, I have acros and a Maxima clam growing well up top, and LPS doing well down low.