Im starting a 90 gallon all-glass mega flow aquarium, i have had a custom canopy & stand built and plan on using metal halide lighting (2x250watt). The Canopy is xtra high for the reason of the metal halides and cooling issues. My question is about the gas exchange, the back of the canopy is open and the top is a one piece piano hinged lid, i didnt want holes is the top of the canopy because of the light being able to escape and look like the sun rising in the room. I have a 4.5 inch hole driled on both side of the canopy (one sucking air in and one pushing is out using to fans that push 106cfm.) They are pretty powerful little fans, that should be enough air for sufficient cooling with gas exchange right? If i have to ill buy a chiller, my concern is about the gas xchange and some cooling. Im unsure about which lighting ill be using but im really leaning towards the aqua medic MH-T5 combo lighting. Any help is appreciated. btw, first post on 3 reef.
Thanks in advance
Dennis |