Answer by
AnnaS (123)
Experts recommend water quality testing to determine if ammonia and other pollutants have accumulated. You can purchase a water quality testing kit or call a company that specializes in this type of testing. This is the most common cause of milky pond water so it is best to start here.
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some of the treatments like blankenweed crystalline can make the phosphates and nitrates bind which is another cause outside of your clay idea add a comment