A transparent toilet tank that doubles as an aquarium is being marketed by Elseware Design in Brooklyn, N.Y. The acrylic tank is partitioned into two sections, so the fish in the front section are in no danger of being flushed away. The tank is designed to connect to almost any standard toilet bowl, using an offset 3-inch PVC connector pipe. The heavy tank requires three steel legs to support its weight, since it holds 8 gallons of water in the aquarium section and at least 1.6 gallons in the rear section. "The standard toilet was designed about a hundred years ago, and it hasn't changed much," says the designer, Oliver Beckert, who is now taking orders for the $1,200 toilet tank. "The idea is to bring more fun into the bathroom."