Imagine if your world was about the size of an average bedroom. That must be what it's like for today's subject - our senior pleco (plecostomus) - we also have a junior pleco. We estimate that pleco sr. is 20-25cm (8-10") long. I suspect he's happy in his environment - after all, he's fed daily, gets his home cleaned regularly, and he's kept warm. What more could a fish ask for ?
Good thing we're not evolved from fish but were created as human beings, in the image of the Master. And we've been given a great big world to take care of, explore, and be in awe of its creator.