dont think its quite five feet long.. think its only 4 feet long and 3.3 feet wide.....so wasnt sure if that 1 foot wider then a usual tank...makes it ok to not be 6 or eight feet long..i just want to get a tank for her..basically its the same footprint as my tank now..except 20 inches wider..agreed floor space is better than height 6x4x2 high or in your case 5x3x2 high