Hi, I'm new to these boards and I have a quick question. I have a friend who's helping me construct a canopy. It's going to be a simple box, ten inches high, that sits on top of the aquarium with a flip up front and an open area six feet by 4 1/2 in the back just above the tank. My aquarium is an 125 gallon with glass tops and two 36 inch 96w corallife deluxe single strip aqualights. What's the highest the temperature should get? After buying all the wood and tools I'm kinda broke so I'd rather not go with an aquarium fan. Could I get away with drilling ventilation holes in the top? If so, how big and how many? Thanks in advance for any replies.