The excel I set up was for my tank you only need to focus on the yellow section. Dispite the yellow being square I marked the front of the tank at 24" for the reading and my tank is 18" wide. The only thing I can't try to acount for is and reflection off the glass on the sides of your tank.
I was reading my settings in that excel I adjusted my lights back down to 13" above the water a while back and with them ramped up to 100/100 I get about 350 par bottom center, 700 par top center, and the highest par my acros get is about 500.
I was reading my settings in that excel I adjusted my lights back down to 13" above the water a while back and with them ramped up to 100/100 I get about 350 par bottom center, 700 par top center, and the highest par my acros get is about 500.
but i have gsp getting 350 and zoas getting 250. Did you change your lenses?

