How to get rid of weeds on pond

Linnea
by Linnea
We have a pond that is about as long as a football field but not as wide. It's fed by two freshwater springs, and the water used to be clear. In the last few years, however, some kind of thick weed has overtaken it. It grows on the bottom of the pond and floats on the water. I hate to lose our pond. A few fish live in it. Can anyone help me?

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