Common name: Green Hair Algae

General information

Cladophora prolifera, commonly known as Green Hair Algae, is a species of green algae that can be found in marine aquariums. It is characterized by its bright green color and hair-like strands that can grow quite long if left unchecked. This algae is often introduced into aquariums on live rock or coral fragments.

While some aquarists consider it a pest due to its rapid growth and ability to overtake a tank, others value it for its natural appearance and utility in nutrient export. It can absorb excess nutrients like nitrates and phosphates, which can help improve water quality.

Care

Managing Cladophora prolifera in an aquarium setting requires careful control of nutrients. Regular water changes, efficient filtration, and the use of nutrient-absorbing macroalgae or media can help keep its growth in check. Some herbivorous fish and invertebrates, such as certain species of tangs, blennies, and snails, can help control its spread by grazing on it.

Symbiosis

While Cladophora prolifera does not have any specific symbiotic relationships in the aquarium, it can provide a habitat for small microfauna, such as copepods and amphipods, which are beneficial for the overall ecosystem and can serve as a natural food source for fish.

Habitat

In the wild, Cladophora prolifera is found in a variety of marine environments, from shallow waters to depths where light can still penetrate. It is adaptable to a range of lighting conditions and can be found attached to rocks, coral rubble, or other substrates.