Do I need venting to outside for this new Tank build?

[Trigger Man]

I am thinking of setting up a 150 g or so tank (72 L x 20 H x 24 W) in my basement. The sump is going to be in the furnace room right beside the tank, and the main tank will be in a large open air rec/bar room, there is a decent sized window to the right of where the tank will be. My question is will I need to punch out a hole and install a fan in either the furnace room or the other room? I ran a 120ish gallon in my last place main floor and had no venting issues, It was a very open concept, this house has spiral stairs to the basement so that part is open to the main and upper floor, and a room away from where the tank will be.
So what do you guys think?