Pincushion Urchin - Group of 2 Reviews

Member Reviews

  • Pincushion Urchin

    Posted by bobbiemc98

  • Eats all forms of algae, comes in different colours and shades
  • Likes to carry around snails, crabs, corals and anything else they can carry
  • These little guys have become my favourite algae eaters. They are cute and puffy looking giving them some charm. Their best attribute is the fact that they eat all forms of algae. When I got new lights I had an out break of red slime. These little guys ate the red slime like it was candy. The biggest problem with urchins is that they have an endless appetite. I would only recommend a sea urchin for large aquariums over 75 gallons. I currently have 3 in my tank and they all get along great. The other problem with these guys is that they like to carry around materials on their back. These materials can very depending on the size of the sea urchin. They are not very strong so the items they carry are relatively small. They can be a pest to snails, crabs and small corals by carrying them around on their back. If algae is your number one problem than these guys are you number one solution ^^.

Facts & Details

The Pincushion Urchin is a small Urchin that is white and green in color with very sharp protruding spines -- like pins. In Nature, these spines serve as an excellent defense mechanism from predators. These 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. All Urchins like lots of rockwork that they can crawl and feed on. They are excellent algae eaters.Urchins belong to a Class known as Echinoidea, which consists of creatures that have a skeleton made of ten plates covered with spines. Urchins have mostly round bodies with protective spines on their upperside and tubular feet and a mouth on the underside. Artistotle once wrote of the five parts of the Urchin's mouth: "In reality the mouth-apparatus of the urchin is continuous from one end to the other, but to outward appearance it is not so, but looks like a horn lantern with the panes of horn left out." This holds true today as the mouth of the Urchin is referred to as "Aristotle's Lantern". The mouth of the Urchin is used to scrape algae from rockwork. The spines of the Urchin are a defense mechanism that are barbed like that of a fish hook and can inflict serious pain to the predator. These spines can either come to a sharp point or can be stubby and blunt.

Pincushion Urchin - Group of 2

Pincushion Urchin - Group of 2


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