Tank maintenance getting you down? Teach your fish to clean up after themselves.
Jock the octopus, a star attraction at Scotland’s Loch Lomond Aquarium has learned to clean the glass on his own aquarium. He was apparently intrigued when staffers would clean his tank, and one day took over the task. Jock has become such a neat freak he even cleans up after dinner, stacking discarded crab shells in a pile.