Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants Green Surface Algae?

It is one of the several thousand types of green algae. To verify skim some of it to half fill a jar. Cap it and after a few hours uncap and smell the air inside the jar. If it smells vile, moldy and rank then it is a bluegreen algae. Fishy smell or not much smell then it is one of the green algae.

Algae and pond plants grow based on nutrients. Fish manure is full of nutrients. Nutrients for growing pond plants also come for numerous other sources. The more fish you have the more fish manure you have and the more nutrients released into the pond to grow more green stuff. Harvest some fish each year so you don't have so many fish to reduce the feeding and amount of manure. Feeding too many fish can result in numerous algae problems.

Try this - take about 2 cups of your Cutrine-Plus and mix it with 10-12 cups (3 quarts) of water Wait for the scum to blow into one area and spray this mixture on the surface film. It could take several days to notice a significant reduction. Report your results.