With 400-MH, I was getting 800 par up top, 400 middle, 250 sand on a 29" deep tank.

With LEDs, I am getting 400-500 par up top, 350 middle, 150-200 sand.

I have not measured the par yet after adding my three 60" T5 supplement bulbs yet. I'll update when I do that sometime next month.



FWIW, this was all measured with the old apogee sensor geared toward MH and T5 bulbs and not the new one geared towards LEDs.