Common name: Grape Caulerpa

General information

Botryocladia uvaria, commonly known as Grape Caulerpa or Red Grape Algae, is a species of red macroalgae that is popular among reef aquarium enthusiasts for its attractive appearance and ease of care. This species is characterized by its grape-like structures, which are actually gas-filled bladders that help the algae float and reach light for photosynthesis. It adds a unique texture and color contrast to the reef aquarium, with its deep red to purple hue.

Care

Grape Caulerpa is relatively easy to maintain in a reef aquarium. It requires moderate lighting and can grow well under a variety of conditions. It is important to keep it pruned to prevent it from overgrowing and potentially overtaking other sessile organisms in the tank. Grape Caulerpa can absorb excess nutrients, such as nitrates and phosphates, which can help improve water quality and reduce the likelihood of nuisance algae blooms.

Symbiosis

While not known for hosting or forming direct symbiotic relationships with marine animals, Grape Caulerpa can provide a natural and beneficial environment for small invertebrates and fish. Its dense structure offers hiding places and shelter, which can be particularly advantageous for shy or small species seeking refuge.

Habitat

Botryocladia uvaria is found in tropical and subtropical oceans worldwide. It typically grows in shallow waters, often attached to rocks or other hard substrates in areas with good water flow. This species can be found at various depths, usually not exceeding the photic zone where sunlight penetrates sufficiently for photosynthesis.