"Nutrients bad. Nutrients algae causation."However, initially nitrogen and phosphorus in soil are the most and they will be released excessively into the water. Although there are a lot of nutrients, the amount of waterweed’s nutrient absorption are not enough. For that reason, Green algae occur.
"Lack of nutrients bad." Eh?The biggest change is a lack of nitrogen and phosphorus. When nitrogen and phosphorus run short, Green algae will grow on a glass wall of aquarium.