leeches in the pond
I live the the Southwest desert and have had a small pond in my back yard for over 20 years. Every year, usually in the Spring, I get into the pond and clean out the accumulated debris. This Spring I wasn't able to get to it and today I noticed a funny little 'worm' on a floating leaf. I took the leaf out and discovered that the 'worm' was indeed a leech. In all of the 20 years that we've had this pond there have never been any leehes. I have no idea how it got there or what to do about it. Will the fish eat them? I certainly don't want to climb in there now to do any cleaning. Any advice will be appreciated.