Common name: Didemnum conchyliatum

General information

Didemnum conchyliatum is a species of colonial tunicate, commonly known as a sea squirt. These invertebrates are not as widely recognized in the reefkeeping hobby as corals or fish, but they can be an interesting addition to a mature reef aquarium. They form encrusting mats over substrates, including rocks and dead coral, and can exhibit a variety of colors, often blending in with their surroundings.

Care

Didemnum conchyliatum requires stable water conditions and benefits from moderate to high water flow, which facilitates feeding and gas exchange. They are filter feeders, capturing plankton and organic particles from the water column. It's important to maintain good water quality and provide a source of food, such as phytoplankton or fine particulate organic matter.

Reproduction

This species reproduces both sexually and asexually. In sexual reproduction, they release sperm and eggs into the water column, leading to external fertilization. Asexually, they can bud new individuals from the colony, allowing for rapid expansion over suitable surfaces.

Habitat

Didemnum conchyliatum is found in a range of marine environments, from shallow waters to depths exceeding 100 meters. They are often associated with reef systems, where they settle on hard substrates. Their distribution includes tropical and temperate waters worldwide, indicating their adaptability to different conditions.