I did test my par in my tank. I was surprised how high par was in some spots with it being 450 par. I like to try and stick to 250-400 par.
I do feel par acts differently under led’s and 300 par of led isn’t the same as 300 par of t5. I have some corals that would show some green under t5 under 325 par but would turn solid red under the same par under led.
So you think that corals can take a higher par number under T5s vs LED? I am pretty sure I have read that multiple places.