Yes I really love their personaolities. They remind me of a dog lol. I am planning on sticking 4 otos in there with him , I was going to get them first but a) no one had them , and b) I was advised against it in a few different areas because my tank is not well established yet algae wise. Then I learned that less aggressive fish should be added first... -_- oh well lol I just hope he is nice to them!