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Step-by-step instructions on how to clean a lake, reservoir or pond without using a dredger and chemicals. We talk about the causes of pollution and fish death. We install bottom aeration, fight unpleasant odors, and increase water transparency. The second part of the video: • How to clean a reservoir. We install a bottom... On this pond we used: 1) TwinAero XL pond aerator https://ledoed.com.ua/ua/p1045170611-... 2) MacroZyme MZ8 bacterial preparation https://ledoed.com.ua/ua/p29501193-ba...