How safely increase par on Hydra 26 HD

[reefdummy]

My PAR is 109 at the pick on SPS level. I want to safely increase it and have a hard time to find the video. I been told that i can use acclimation for it, but it takes the light down. if i need to set the schedule higher and use acclimation right after, what is % i should use on the acclimation ( the same amount i raise up?) i want to be sure so i won’t bleach my corals. They are doing ok, but the growth is very slow. And how long do i need to set the acclimation