How Much Sunlight Does a Pond Need?
This is one of the biggest myths surrounding water gardening today. Most books say a pond needs a minimum of 4-6 hours of sunlight a day for aquatic plants to live. They discourage building a pond in a shady area.
The truth is that aquatic plants do bloom more and flourish better in high sunlight conditions. This is not debatable. What is debatable is how well aquatic plants can do in low light conditions.