I have most of my SPS at extremely high PAR according to the community PAR meter i just borrowed...i had no idea it was that high but i saw no bleaching/burnt tips so i didn't think anything was wrong...and then the first time i measured it was when Tom brought his PAR meter over and i was seeing 2500PAR AWL and 700-800 over the top of the rocks! i couldn't believe it...then i borrowed the community PAR meter and got the same results...still, nothing burns in there which is weird...so i didn't change anything - if it's not broke, why fix it, right?
i'm curious to read that research paper though..do you have a link? if it really isn't beneficial to have my sps at this high intensity, i'm going to consider slowly lowering my levels or raising up the lights
PS - it's also important to note i use all LEDs - 2 Hydra 52 HD over the DT and 1 Hydra 26 HD over the FT...all 3 are maxed out, lol...PAR meters are kind of inaccurate with LEDs right?