Common name: Black teatfish

General information

The Black Sea Cucumber, scientifically known as Holothuria nobilis, is a large and visually striking echinoderm that is popular among advanced marine aquarium hobbyists. This species is known for its black coloration with white threads, which can add a unique aesthetic to a reef tank. It is a detritivore, playing a crucial role in the ecosystem by consuming detritus and recycling nutrients.

Care

Holothuria nobilis requires a spacious tank with a deep sand bed and plenty of live rock to thrive. It is sensitive to changes in water quality, so stable conditions and excellent filtration are essential. This species is not recommended for beginners due to its size and care requirements. It's important to ensure that the tank does not have aggressive fish or invertebrates that might harm it.

Reproduction

In the wild, Holothuria nobilis reproduces by releasing eggs and sperm into the water column, a process known as broadcast spawning. In captivity, breeding is rare and challenging, but maintaining optimal water conditions can encourage natural reproductive behavior.

Symbiosis

While not known for specific symbiotic relationships like clownfish with anemones, Holothuria nobilis contributes to the overall health of the reef ecosystem by cleaning the substrate and providing a food source for other animals when it sheds its skin.

Habitat

Holothuria nobilis is found in the Indo-Pacific region, from the Red Sea to the waters of Hawaii. It prefers sandy bottoms and reef slopes, where it can bury itself for protection. In the aquarium, replicating its natural environment will help ensure its well-being.