yes, i need the length. i have this "problem". i am keeping some fancy goldfish in this tank. nothing special, but i think they are cool. all are about three to six inches long. now for the problem. i met a guy that was taking down his 55 gallon tank, and did not want to kep the fish. he gave them to me. now i have goldfish that are eight to twelve inches long. i need the length and not the height. otherwise i would keep what i have. i also have a gen-x 40 pump, a bag of coralife salt mix, and saltwater testing supplies to go with this tank. i just thought someone would have one they wanted to trade. thanks.