Help, I have some sort of red worms growing in my foam rubber filter. Will they kill my fish....or me?
The worms are leeches and I have seen thousands of them. They don't hurt anything at all. They help the pond by eating decomposed organic material and sludge at the bottom of the pond and, of course, in the filter.
Give your pond a jump start this spring with
It helps get a great biosystem going, so your fish, plants and water will start out the spring healthy.