i hav been talking with a friend of mine and i have designed a floorplan that would be the bomb. take that kind of glass like the walkway but have about 20x20 feet for a game room. have the water come all the way up to the floor and there would be a 2x4 foot section in the middle of the room that would act like a chimney for he tank. the water could come up into the chimney just like a beer bottle. you could feed through the chimney, and do water quality test. this way, there would be no air between the glass floor and the water surface so no refractive issues. then have another room downstaris ajoining the tank so you can see the sides of the fish (master bedroom) that is a cool picture though.