Tuxedo Urchin

Name Tuxedo urchins
Other Names
Pincushion urchin, Globe urchin, Sphere urchin, Blue Tuxedo urchin, Crown urchin, Royal urchin, Ball urchin or Decorator urchin
Scientific Name Mespilia globulus
Tank size (minimum) 15 gallons (~60 liters)
Keeping Easy – Medium
Breeding Difficult 
Average size up to 2 inches (~5 cm)
Optimal Temperature 72 – 79 °C (22 – 26 °C)
Water type SG = 1.021 – 1.025
Optimal PH 8.1 – 8.4
Optimal KH 8 – 12
Nitrate Less than 20 ppm
Diet Herbivorous / Algae
Temperament Peaceful
Toxicity
No
Life span up to 1 – 2 years
Color Form Velvety, dark blue, or black bands between rows of short, brown, or tan spines