What causes green water in ponds, lakes or dams?
Green water is caused by microscopic algae suspended in the water. These algae multiply rapidly when nutrients are available and water movement is limited. Common sources of nutrients include organic debris, fertilisers, animal waste and runoff from surrounding land.
Common sources of nutrients include organic debris, fertilisers, animal waste and runoff from surrounding land.
Why does algae grow so quickly in my pond, lake or dam?
Algae thrive in still water exposed to sunlight. Without circulation, nutrients remain concentrated and create ideal conditions for growth.
Once algae establish themselves, they block light, reduce oxygen levels and disrupt the natural balance of the ecosystem.
How can I control algae effectively?
Rather than treating algae with chemicals, the most sustainable solution is improving water conditions.
Aeration increases oxygen levels and circulation, helping beneficial bacteria compete with algae and break down excess nutrients. Over time, this reduces algae growth and improves overall water clarity.
Discover how Otterbine aeration systems help prevent green water and restore healthy water conditions in ponds, lakes and dams. Learn more at https://otterbineaustralia.com.au