Thanks.
The details is it is a 12 by 16 foot floor. With a 9 to 10 foot high ceiling. The floor is a concrete slab with a drainage pipe with grid in the middle. The room is going to be insulated to the best of my knowledge. There is a lot of electrical power that has been wire to the aquarium room. Lastly there is an outlet for a hose and going to be a industrial sized sink inside room. The door is only 35 inches long and is going to limit unless we lift the rough the width or heights of the tanks that can go in the room.
For the Arowanas and main tank I think I'm going for a 10 foot by 34 inch wide by 3 foot tall custom tank. Just around 600 gallons.
And I almost forgot the small opening next to the window is going to be for small AC unit.