Fish and Aquatic Life

Lynn Ketchum

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Guillermo Giannico
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My pond has become a fly nursery. How can I get rid of them?

I have a 4 year old 12,000 gallon koi pond with a large waterfall. I went to clean the waterfall filters and add barley hay for the algae last weekend only to find thousands, maybe millions, of black fly larvae. I scraped the waterfall as best I could and turned the waterfall back on. The koi...

By Will Jessie | Featured Question