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Sea Urchins

 
   
Sea urchins or urchins are small, spiny, globular animals that compose part of class Echinoidea. They are found in oceans all over the world. Their shell, or "test", is round and spiny, typically from 3 to 10 cm across. Common colors include black and dull shades of green, olive, brown, purple, and red. They move slowly, feeding mostly on algae. Sea otters, wolf eels, and other predators feed on urchins. Sea urchins are also harvested by humans and their roe is served as a delicacy.Sea urchins are members of the phylum Echinodermata, which also includes sea stars, sea cucumbers, brittle stars, and crinoids. Like other echinoderms they have fivefold symmetry (called pentamerism) and move by means of hundreds of tiny, transparent, adhesive "tube feet". The pentamerous symmetry is not obvious at a casual glance but is easily seen in the dried shell or test of the urchin.

  Assorted Colored
Pin Cushion Urchin
Lytechinus vaniegatus
Description: The Pincushion Urchin is a small Urchin that has sharp protruding spines. They grow to only 2-3 inches. In Nature, these spines serve as their defense mechanism from predators. All Urchins are nocturnal and do most of their grazing at night. During the day they will usually stay stationary on the aquarium glass, or in hiding spots in rockwork. Urchins are excellent algae eatersl and ike rockwork that they can crawl and feed on.
A great choice for the aquarium. They will use a series of tube feet on their underside to move about the tank in search of algae and detritus. They will scour the rockwork, glass and sandbed. Their colors range from all white, to white with pink or purple spikes, and sometimes they are all purple or all pink. Urchins are completely reef-safe.
ood and diet:The urchin is best kept in an aquarium where it will have ample supplies of algae to eat.
Recommended minimum tank size: 1 gallon or larger
Level of Care: Easy
Approximate Purchase Size: 1" to 2"
Reef Compatibility:Very good

$11.99 ea.
Quantity :

   Black Longspine Urchin
Diadema setosum
Description: The black longspine urchin is a very interesting addition to any aquarium. It has long, thin black spines that extend from its body, and rows of blue spots in a symetrical design across its body. The anus of the long spine urchin looks like an eye on the top of the body, with a bright orange ring in the center. While the body itself is usually only about 2 to 3 inches in diameter, the spines can grow three to four times this length. During the day, urchins will find a corner or hiding spot to rest. At night, they will roam about the tank searching for food and algae on the substrate, rockwork, and glass.
Food and diet:The urchin is best kept in an aquarium where it will have ample supplies of algae to eat.
Recommended minimum tank size: 1 gallon or larger
Level of Care: Easy
Approximate Purchase Size: 1" to 2"
Reef Compatibility:Very good
REEFSAFE
$19.99 ea.
Quantity :

  Zebra Pencil Urchin
Prionocidaris sp.?

Zebra Pencil Urchin has thick sparse spines with tan and reddish-brown bands
One of the more rare varieties of Urchins, the Zebra Pencil Urchin is a very interesting addition to any aquarium. It has long, thin tan and reddish-brown bands on the spines that extend from its body, and rows of blue spots and blue lines in a symetrical design across its body. The anus of the Zebra Pencil Urchin looks like an eye on the top of the body. While the body itself is usually only about 2 inches in diameter, the spines can grow three to four times that length. During the day, urchins will find a corner or hiding spot to rest. At night, they will roam about the tank searching for food and algae on the substrate, rockwork, and glass.

A few known urchins are venomous, but most of the species are harmless to aquarists. The most common injuries from urchins happens when the aquarists accidently bumps against an urchin and gets poked by its spines. Spines can become broken off in the skin, especially with thinner-spined urchins, so always take care around your urchin to avoid injuring it or yourself.
Food and diet:The urchin is best kept in an aquarium where it will have ample supplies of algae to eat.
Recommended minimum tank size: 1 gallon or larger
Level of Care: Easy
Approximate Purchase Size: 2"
Reef Compatibility:Very good
REEFSAFE
$29.99 ea.
Quantity :

   Pencil Urchins
Eucidaris tribuloides
Description: The pencil urchin, Eucidaris tribuloides, is a sea urchin that inhabits regions of the Atlantic Ocean.The Pencil Urchin, also known as theClub or Mine Urchin,it is a small reddish brown urchin with pencil-like spines protruding from its body. These spines are thicker than that of other urchins. But like all urchins, they act as a defensive mechanism against predators in nature. Some species of sea urchins, such as the slate pencil urchin (Eucidaris tribuloides), are commonly sold in aquarium stores because they are effective at controlling a reef tank's hair algae issues.
During daytime hours the Pencil Urchin will spend its time sleeping near rocks, or corners of the aquarium. At night though, they will come alive, searching out algae such as its favorite hair algae or any other form of green algae for a meal.

Food and diet:The pencil urchin is best kept in a reef-style aquarium where it should be fed dried green seaweed sheets.
Recommended minimum tank size: 20 gallon or larger
Level of Care: Easy
Approximate Purchase Size: 1" to 2"
Reef Compatibility:Very good
REEFSAFE
$11.99 ea.
Quantity :

  Colored Tuxedo Urchin
Mespilia globulus
Description: Easily identifiable by there colored bands usually blue or black, with red, black, or orange dark spines. Like all urchins, Tuxedo Urchins are an excellent algae controller for either a reef aquarium or a saltwater fish only aquarium housing aggressive fish. During the day, urchins will find a corner or hiding spot to rest. At night, they will roam about the tank searching for food and algae on the substrate, rockwork, and glass.
Food and diet:The urchin is best kept in an aquarium where it will have ample supplies of algae to eat.
Recommended minimum tank size: 1 gallon or larger
Level of Care: Easy
Approximate Purchase Size: 1" to 2"
Reef Compatibility:Very good
REEFSAFE
$21.99 each
Quantity :
xx
Photos are representative of each species. Each animal is unique and variations should be expected.
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