Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants How to control FA

OSU provides a good Fact Sheet about filamentous algae (FA). Always remember it grows because there are excess nutrients / fertilizer in the water that act as stimulus for FA and all plant growth. Control the nutrient input or production within the pond and there will be less stimulus potential for FA. FA usually starts growth when FEW other plants are present to use the nutrients. Then FA thrives. FA always starts growth as tiny plants attached to under water surfaces, then it later breaks loose and floats. The new small plants are most susceptable to treatment. Be observant. The Fact Sheet does not discuss Tilapia which are very good at eating FA and converting it into fish biomass that provide a benefit to the pond ecosystem and the pond owner as a food source. Experience has shown blue tilapia are best for overall FA management. Consider using them as part of a eco-friendly management plan.