Common name: Velvet Horn

General information

Codium adhaerens, commonly known as Velvet Horn or Spongeweed, is a species of green macroalgae that is often found in marine aquariums. It is characterized by its velvety texture and dark green color, which can add a natural and lush appearance to the tank. This alga is part of the Codium genus, which is known for its sponge-like structure. It is not only appreciated for its aesthetic value but also for its role in nutrient export and providing habitat for small invertebrates.

Care

Velvet Horn is relatively easy to care for in a reef aquarium setting. It requires moderate lighting and water flow to thrive. It can be attached to live rock or allowed to float freely in the tank. This alga is adept at utilizing nutrients such as nitrates and phosphates, which can help in controlling algae blooms and maintaining water quality. Regular pruning may be necessary to keep its growth in check and prevent it from overshadowing other tank inhabitants.

Symbiosis

While Codium adhaerens does not have the same level of symbiotic relationships as some corals or anemones, it does provide a microhabitat for a variety of small marine organisms. Tiny crustaceans, worms, and other invertebrates may take refuge within its branches, which can add to the biodiversity of the aquarium.

Habitat

Codium adhaerens is found in a range of marine environments, from intertidal zones to subtidal areas. It is commonly seen on rocky substrates and can be found in various parts of the world, including the Atlantic and Pacific Oceans. In the wild, it can grow in dense mats, providing shelter and food for a multitude of marine species.