alright so i have recently up dated my fish tank light in my aqua medic nano wave 9 GAL . I purchased the Kessil A80. and so far vary happy with it, but with updating the lights. i had to get rid of the top. and i am planing on getting some black egg crate to use as my aquarium top. i am wounding if using black egg crate instead of white will affect the quality of light for my coral. I am wounding if anyone had feedback on if black is okay. or if white is better. or if doesn't matter.