It's a Jungle in There

Butter wouldn't melt in its mouth (well, it's cold blooded after all) but it's getting a wide berth just now.
Strangely it's the most nervous fish in the tank and spends a lot of it's time upside down so is almost impossible to photograph well. After sitting for ages as motionless as possible this was the best I could get. A tripod was just too much hassle.