So I am finally upgrading my 29 gallon to a 40b and I build a canopy for it. I was wondering How you guys feel about ventilation in it. It is sealed all the way around. I have a 5"× 6" hole in the top of it with some egg crate covering it that sit right above my light fixture. I also have two 80 mm fan I'm gonna use to move air on the inside if the canopy but I am looking for suggestions on placements. The canopy is 37" long by 11 1/2" high. All suggestions are welcome and wanted please. Thanks guys.