For years, Andrew Murray would see the small schools of goldfish living in the storm pond near his home in suburban London, Ont. He never thought much of them until this spring, on a sunny day in April when the normally greenish pond had an unusual, if not slightly orange tinge. An avid nature photographer, he captured a few close-ups. It wasn't until he got home and looked at the pictures that he realized how many goldfish must be swimming around in there.