Certain aquatic organisms consume filamentous green algae, commonly referred to as hair algae. These organisms include specific species of snails, shrimp, and fish that graze on the algae as a primary food source. For example, Amano shrimp are known for their appetite for various types of algae, including hair algae, and are often introduced into aquariums to help control its growth.
The introduction of algae-eating organisms offers a natural method of controlling excessive algal blooms within an aquatic ecosystem. This biological control can reduce the need for chemical treatments, fostering a healthier and more balanced environment for other aquatic life. Historically, this approach has been utilized by aquarists and pond keepers to maintain water quality and aesthetic appeal.