While they are fascinating, intelligent creatures, a great deal of thought should be given before considering keeping a pet octopus. This hobby will require immense research, equipment and investment to keep them successfully, and considering their average life span of 1 to 2 years, may not be worth the input.Just finding a pet octopus may prove to be quite a challenge. Few pet stores will carry such exotic creatures, and when they do, it will be difficult to determine the type of octopus they have. You will likely need to shop online to locate one, and when you do, you’ll have to figure out how to get it. Octopuses are not good travelers.