Common name: Spotted Sea Urchin

Scientific name: Pseudoboletia maculata Troschel, 1869
stained collector urchin (Pseudoboletia maculata) from Cebu, Philippines isolated on white backgroundstained collector urchin (Pseudoboletia maculata) from Cebu, Philippines isolated on white background

General information

The Spotted Sea Urchin, Pseudoboletia maculata, is a distinctive echinoderm known for its striking appearance and the role it plays in marine ecosystems. This species is characterized by its round body covered with long, slender spines that are typically banded with contrasting colors, often giving it a spotted look. These spines are not only for protection but also aid in locomotion and trapping detritus for camouflage.

Details

Recommended minimum tank volume
200 liter (53 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8.1 to 8.4
Average size
25 cm (10″)
Care level
Moderate to easy Requires stable conditions
Diet
Omnivore Enjoys varied diet, incl. algae
Reefsafe
Yes
Aggression
Peaceful
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Echinoderms
    Echinodermata
  3. Class
    Sea Urchins
    Echinoidea
  4. Order
    Reef Urchins
    Camarodonta
  5. Family
    Collector Urchins
    Toxopneustidae
  6. Genus
    Indigo Sea Star
    Pseudoboletia
  7. Species
    Spotted Sea Urchin
    Pseudoboletia maculata Troschel, 1869

Care

In the aquarium, Pseudoboletia maculata requires a stable environment with ample live rock and a sandy substrate to mimic its natural habitat. It is important to maintain high water quality with stable parameters, as sea urchins can be sensitive to fluctuations. They are generally peaceful and can coexist with a variety of tank mates, but care should be taken to ensure they do not become prey to aggressive fish.

Reproduction

Spotted Sea Urchins reproduce by releasing gametes into the water column, a process known as broadcast spawning. In the aquarium, this behavior is less common but can occur in well-established systems. The resulting larvae are planktonic and go through several developmental stages before settling to the bottom and metamorphosing into juvenile urchins.

Habitat

Pseudoboletia maculata is found in tropical and subtropical waters, often inhabiting coral reefs, seagrass beds, and rocky substrates. They play a crucial role in their ecosystems by grazing on algae, which helps prevent overgrowth and maintain the balance of reef communities.