Common name: Bald-patch urchin

General information

The Red Heart Urchin, scientifically known as Microcyphus rousseaui, is a fascinating invertebrate that adds a touch of uniqueness to any reef aquarium. This species is known for its distinctive heart-shaped test (shell) and vibrant red coloration, which can vary from deep red to a more subdued orange-red hue. The Red Heart Urchin is a member of the echinoid family, which includes sea urchins and sand dollars.

Care

Caring for a Red Heart Urchin requires a well-established aquarium with a sandy substrate that allows it to burrow and hide. They are generally peaceful and can coexist with a variety of tank mates. However, they should be kept with caution around corals, as they may inadvertently damage them while moving around the tank. A diet rich in algae and detritus will help maintain their health and coloration.

Reproduction

In the wild, Red Heart Urchins reproduce by releasing gametes into the water column, a process known as broadcast spawning. In the aquarium, breeding is less common but can occur if conditions are optimal. The larvae are planktonic and go through several developmental stages before settling to the bottom and metamorphosing into their adult form.

Habitat

Microcyphus rousseaui is typically found in the Indo-Pacific region, from the Red Sea to the tropical waters of the Western Pacific. They inhabit sandy areas and seagrass beds, often at depths ranging from shallow waters to about 40 meters deep.