Well i think i have one of the larger aquariums on this forum now. I woke up this morning to a dream. I have an aquarium that is about 25'x75'x an average depth of 3'. Yes those are all suppose to be footage. That comes out to about 42,077 gallons. Its filled with water and ready for salt. Its very well insulated and wont need much for heating and cooling. Now i just need to figure out the lighting situation. In case you are wondering what the tank is made out of, its my house. The water line busted yesterday and my crawl space is full. Fun, fun!!!