For a myriad of reasons it is inevitable in most cases that pond water will not stay clear or clean. Algae is the most common presence in a dirty pond, turning the pond an undesirable blue green colour. Algae growth occurs for a multitude of reasons:Sunlight: Light is needed for all plant growth, algae is no different. In the warmer months, the increased water temperature aids in algae growth. Shallow ponds allow more light in, increasing algae growth.
Fish: Overstocking of fish causes ...
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