Originally Posted by Smithcinema
its 1 foot above 31in deep tank my green mushroom looks shriveled up a little is that from to much light
Yes, mushrooms will be smaller in the higher light areas, larger in the shadows. Mine however reproduce like mad in the intense light while being only an inch in diameter...they are pretty adaptable. You can always add small pieces of screen to reduce light in certain areas.
I use panels like these to light my 250 and it is 34" deep. I have 580 watts of 1 and 2 watt LEDs mixed like yours, half white and half blue. I have a dozen reefs lit with these panels, as I import them, so I am getting pretty comfortable with the PAR they generate and they can bleach a elkhorn coral in a few days if you don't shade the coral some at first. I think elkhorn can take more light than most SPS
can. My mushrooms were in shock for the first few months, then adapted, some moved to shadow, some just stayed small but numerous. Good LEDs produce more light than you give them credit for.