Common name: donkey dung sea cucumber

General information

The Mexican Sea Cucumber, scientifically known as Holothuria mexicana, is a large and colorful echinoderm commonly found in the Caribbean Sea. It is known for its distinctive leathery skin and elongated body, which can range in color from brown to green, often with red or yellow hues. This species plays a crucial role in the ecosystem by consuming detritus and recycling nutrients.

Care

Holothuria mexicana is a detritivore, feeding on organic matter and sediment in the substrate. In the aquarium, they require a large tank with a deep sand bed to mimic their natural environment. They are sensitive to changes in water quality, so stable conditions and regular maintenance are essential. It's important to ensure that the tank does not have aggressive fish or invertebrates that might harm the sea cucumber.

Reproduction

Sea cucumbers, including Holothuria mexicana, reproduce both sexually and asexually. In the wild, they spawn by releasing eggs and sperm into the water column. In captivity, breeding is less common, but with optimal conditions, it is possible to observe spawning events. Hobbyists should be aware that some sea cucumbers can release toxins when stressed, which can be harmful to tank inhabitants.

Symbiosis

Holothuria mexicana often hosts small commensal organisms, such as shrimp and crabs, which find refuge among its tentacles and body. These symbionts help keep the sea cucumber clean by feeding on parasites and dead skin.

Habitat

The natural habitat of the Mexican Sea Cucumber includes seagrass beds, sandy bottoms, and reef areas, typically in shallow waters. They are often found partially buried in the substrate, where they can easily access organic material for feeding.