Sea Invertebrates by Type: urchins

	Microcyphus Rousseau maximum size: up to 5 cm type of aquarium: close care level: for the experienced aquarist color of marine invert: purple more information
	Sphere Urchin (Blue Tuxedo Urchin) maximum size: 5-10 cm type of aquarium: close care level: easy color of marine invert: white more information
	Bicoloured Sea Urchin (Red Sea Urchin) maximum size: 5-10 cm type of aquarium: close care level: easy color of marine invert: green; purple; red more information
	Purple Short Spine Pincushion Urchin maximum size: 5-10 cm type of aquarium: close care level: moderate color of marine invert: brown; pink more information
	Fire Urchin maximum size: 5-10 cm type of aquarium: close care level: moderate color of marine invert: green; red more information
	Heart Sea Urchin maximum size: 5-10 cm type of aquarium: close care level: for the experienced aquarist color of marine invert: brown more information
	Helmet Urchin maximum size: 5-10 cm type of aquarium: close care level: moderate color of marine invert: purple more information
	Needle Spined Sea Urchin maximum size: 5-10 cm type of aquarium: close care level: moderate color of marine invert: purple more information
	Longspine Urchin maximum size: 10-20 cm type of aquarium: close care level: easy color of marine invert: red more information
	Pencil Urchin maximum size: 10-20 cm type of aquarium: close care level: moderate color of marine invert: light blue; yellow; red more information
	Short-Soined Urchin (Rock Urchin) maximum size: 10-20 cm type of aquarium: close care level: easy color of marine invert: light blue more information
	Pincushion Urchin maximum size: 10-20 cm type of aquarium: close care level: easy color of marine invert: grey; purple; blue; yellow; red more information
	Collector Sea Urchins (Sea Eggs) maximum size: 10-20 cm type of aquarium: close care level: moderate color of marine invert: green; grey more information
	Poison Urchin (Flower Urchins) maximum size: 10-20 cm type of aquarium: close care level: easy color of marine invert: green more information
	Magnificent Urchin maximum size: 10-20 cm type of aquarium: close care level: for the experienced aquarist color of marine invert: red more information
	Longspine Sea Urchin maximum size: more than 20 cm type of aquarium: close care level: easy color of marine invert: black more information
	Sand Dollar (Sea Biscuit) maximum size: no information type of aquarium: close care level: moderate color of marine invert: light blue more information
	Purple Sea Urchin maximum size: no information type of aquarium: close care level: for the experienced aquarist color of marine invert: purple more information