Notorious jumper - the longnosed hawkfish.
I had a fish jumping incident happen recently that was difficult to comprehend. A Reef Tectonics client had a longnose hawkfish (Oxycirrhites typus) that had been in his aquarium for over a year. It was a “happy” fish that seemed to live a copacetic life with its tankmates. While working on the tank, I broke a small portion of the glass top (this resulted in an opening about four by three inches in the front portion of the cover). Before I could replace the top, the hawkfish was found dried up on the office floor – it had jumped out. I was perplexed as to why the fish jumped and how the fish was able to detect the hole in the top that had not been there for its first year in the aquarium?
