gobies, jawfish, hawkfish, definitely top contenders lol
Good story for ya......several days ago I was cleaning my live rock, using a seperate container on the floor in front of my 72g bowfront. Since I had almost all of the 100 pounds of rock out, I usually decide to rearrange my rock as well. I do this every 3 months or so. Well as I was adding a larger piece of rock back into the tank, I didnt see my Valentini Puffer close to my hand.....
...well he did that Puffer thing that Puffers do, and darted extremely fast in a few directions then flew out of the top of my tank, over my head, and into the large rubbermaid container that I was using to rinse off the rock. Luckily there was 5 gallons on water in it, with only a few pieces of live rock left to go. My Puff calmed within a few seconds when he realized I was trying to help him, luckily. He allowed me to scoop him up and place him back into the tank. Scared the piss out of me! He really flew up out of there and he was easily over 6 feet in the air before heading down into the container.
I have had him almost 2 years now, so thankfully he is ok. I have been watching him closely every day since it happened, and he is completely normal. He's one hell of a Puffah!