Pond Boss Forums GENERAL QUESTIONS Water chemistry killed leeches with chemicals, but now ...

Probably your best bet is to go fishing in your local lakes or ask some fishing friends to bring you some perch - maybe try or start with 6-12 at 5"-8" long. If you still have leeches after one year add a few more perch. They have to be mature so you know they are female or male. As CB1 mentioned you want only female perch those fat with eggs in early spring before water temps get to 50F. OR you could use just males that when the belly is squeezed ooze white stuff in early spring. Male perch stay smaller than females of the same age. Do not feed them make them eat natural foods which some will be the leeches. Mixed male and female perch will reproduce and overpopulate in your small pond to the point the small perch will peck swimmers and you don't want that.