Wendy english added on June 13, 2017 | Answered

I have a very small garden pond. It has been covered in duckweed for several years. Manual removal never suffices. I dislike using chemical weed killers of any sort, but if you can suggest one that is not too generally harmful I would risk it. There is one lone goldfish too, the last survivor.

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David Wynne
Answered on June 13, 2017

Try tying dry straw in a bundle, about the same size as a small bunch of flowers, and float it on top. Eventually it will start to sink and may help to solve the problem without murdering Goldy.

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