I recently bought a home with an acre pond. From what we have been told, it is around 15 ft at the deepest. The previous 2 owners did not do much with it. Over grown trees...willows, cat tails etc. The pond is approx 20-25 yrs old. The rock on the edges is either gone or the water completely has it covered over. There are many big fish: cats, bluegill, crappie,perch and frogs. thriving and very big. The beach area doesnt even look like a beach. We have an aerator too. Our kids have swam off the dock where the water seems clean. we have been able to see fish but with all the rain it looks cloudy. my daughter noticed a few small white insects on her. she was yelling that she couldn't pick them off. could they be a type of leach? would love to turn this in to a beautiful place. any help is greatly appreciated. thanks