Originally Posted by Zbatey
Why would you not is it just way to much power
You'll bleach everything in the tank if you go 100%. I have 4 Sol Blues on my 120 and they are incredible and extremely powerful so you will have to start very low and work your way up. I'm only running mine at 40% (tamk is 26"s deep) and find it to be plenty of light.
On another note, Apogee PAR meters are not measuring the blue spectrum of the light correctly (read an email correspondence on another forum from Apogee to the member) from the blue led
's so the resulting PAR reading is actually much higher then indicated on their meter so proceed with caution as blue light penetrates the water better than white light so bleaching is still very possible if your settings are more towards the blue side.