Little antarctic fish (max length 9.5cm) basically that can be caught by divers as they aren’t really that fast. We haven’t been catching them for experiments however, on a dive a few weeks ago Terri handed one to me to look at and when I put it back down it got captured by a nearby anemone and when we left it was being eaten. The one I saw was a lot more colorful than the one in the above picture.