Florida its illeagel (watched a video on live rock)
I use egg crate to cover the top. I didnt want to take a chance on any carpet surfers or give the kiittys any ideas.
Its a 65 gal
tank and I cut the egg crate into 4 pieces. its in a 2x2 pattern. ( 1 front left n right and 1 back left n right> This allows me to easily remove 1 section to feed, move something around, PWC
etc and not worry bout the entire tank being open. I have noticed I get less evaporation using the egg crate, and Ive not notice any lighting difference or shadows from using the egg crate.
Gives me peace of mind.