If all else fails, and you still can’t remove that greenish glow. Perhaps it is time to consider more desperate solutions. Literally. For instance, API Pond ALGAEFIX is fast-acting algae control solution that works to minimise and limit the presence of algae in water gardens, ponds and large water bodies. This algae solution is particularly effective in removing String or Hair Algae as well as Blanketweed. It is safe for fish and plants, but only when used as directed. It is important to note that Algaefix will cause a sudden drop in oxygen levels within your aquarium/pond setup, hence there should be adequate aeration to maintain sufficient oxygen levels within the waters especially in warmer weathers. Hence it is especially important to follow the instructions on the labels. I would only recommend this for owners who have a large aquarium setup/ pond setup that has enough water to fully dissolve and dilute the chemicals within this product. Less is more! Greed can never be a good thing when using chemicals such as Algaefix. Patience is a virtue, my friend.
Hopefully the information and knowledge you have obtained within this short post can keep your waters cleaner.
Stay happy, First Floor Family.