Funkness Posted August 16, 2013 Share Posted August 16, 2013 i am ordering some custom lights for the 135 and i am rebating om 60 degree lenses not wpuld 60bdegreebe 2 narrow of a beam? the tabk is 27inches deep if i remember right the lights will be 120w with mixed specrrum of blue white purple red and green Link to comment Share on other sites More sharing options...
Juiceman Posted August 16, 2013 Share Posted August 16, 2013 I think you're fine. I have two 75 deg ones. They both cover well with no issues. Link to comment Share on other sites More sharing options...
jestep Posted August 16, 2013 Share Posted August 16, 2013 How high above the tank is the fixture? I prefer 80's for almost everything. I messed with 40, 60, and 80's in my par 38 grow lights as well as my pico and the 60's and 40's put out an extremely narrow beam. Link to comment Share on other sites More sharing options...
Neon Reefer Posted August 20, 2013 Share Posted August 20, 2013 I have 60 degree bars on my 75 gal and wish i had 90 degree. They are 8 inches above water line and at 6 inches below water line i still have a oretty good gap between the bars trying only to cover an 18" width. But they have grat penetration. . Link to comment Share on other sites More sharing options...
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