I've had two tanks running now for about 3 years and quickly learned each fish has a personality all its own. The winner for most personality for me is the lawnmower blenny, what a neat little fish these guys are. The other day I walked into my office where the tank he's in resides and what do I see as I walk up to my tank? That joker was literally sitting on a floating veggie clip that had come loose and rode it all the way down to the bottom and hopped off when it got to the sandbed. We stared at each other the whole time and I briefly wondered if I had walked into the Twilight Zone instead of my office. After he hopped off and let if float back up he perched himself on the rock as if nothing out of the ordinary had happened. I consider myself lucky to have seen this behavior and now wonder how many times he had done that prior to me walking in the room.