Common name: Didemnum cuculliferum

General information

Didemnum cuculliferum is a species of colonial tunicate, commonly known as a sea squirt. These invertebrates are known for their encrusting growth form, often forming extensive mats over the substrate. They are filter feeders, drawing in water through their siphons to extract plankton and other organic particles.

Care

In the aquarium, Didemnum cuculliferum requires stable water conditions and moderate to high water flow to mimic their natural environment. They are not particularly demanding in terms of lighting, but they do need a consistent supply of fine particulate food to thrive. It's important to monitor their growth, as they can overgrow and smother other sessile organisms.

Reproduction

Didemnum cuculliferum reproduces both sexually and asexually. In the aquarium, they can spread quite rapidly through asexual budding. Sexual reproduction involves the release of gametes into the water column, where fertilization occurs. The resulting larvae settle on suitable substrates and grow into new colonies.

Symbiosis

While Didemnum cuculliferum does not have notable symbiotic relationships like those seen in clownfish and anemones, their presence can benefit the overall aquarium ecosystem by filtering water and competing with nuisance algae.

Habitat

Didemnum cuculliferum is found in a variety of marine environments, from shallow waters to deeper regions. They are often associated with reef systems, attaching to hard substrates like rocks and coral skeletons.