During the summer months, when pond water is at its warmest, less oxygen is available to be used by aquatic life. This is particularly true during the hours of darkness when fish, plants, algae and biological filters are all using oxygen, and frequently results in fish being found gasping at the pond surface in the early morning .
During the summer months, when pond water is at its warmest, less oxygen is available to be used by aquatic life. This is particularly true during the hours of darkness when fish, plants, algae and biological filters are all using oxygen, and frequently results in fish being found gasping at the pond surface in the early morning .
