Will glass tops affect par value of LEDS?

[fabbss]

I have a 25g cube and a 120w led fixture 1w each led. The fixture is about 6-8 inches off the water. Will the glass top affect the par value?

 

[1DeR9_3Hy]

I cant say that it wont with LEDs but Melev did a test comparing glass tops and no glass tops with a MH. He found there to be very little difference in PAR in that test.

$0.02

 

[fabbss]

Interesting, considering the intensity of LED's I wonder if there is a little difference for LEDs?

 

[Acropolooza]

Obviously, with any barrier they will be a drop it will be slight 50 PAR but it will be there probably won't affect anything though.