Rating: • Order: Diadematoida • Family: Diadematidae • Class: Echinoidea.

Biotope: they usually live in rocky areas of the coral reef, reaching nearly all areas rich in algae, can also be found on sandbars and kelp Distribution: most common habitat is generally found throughout the Indo-Pacific region from Australia and Africa to Japan and the Red Sea.

Size: They tend to be between 4 and 7 cm. Aquarius: They are very good and beneficial for our aquarium as it feeds on these unwanted algae can also eat food scraps, are often placed under rocks and in caves in the aquarium, with increased activity in the night hours. Temperature: between 24 º and 27 º C Water: Salinity between 1,022 and 1,026, the pH between 8.1 and 8.4. Decoration: the typical coral reef, rocks, reefs and caves formed with the rocks. Food: Food is often primarily a large class of algae and leftover food, often collaborate in cleaning the aquarium even eating almost any remaining debris and dead algae. Dejan clean rocks and calcareous sand expelled through the anus. Behavior: Not aggressive or harmful to any living aquarium, the only downside is that you can throw any stone or coral that moving loose with his quills.

Reproduction: Plays expelling the eggs and sperm into the water at the same time. Females can produce millions of eggs each time you spawn. Since the eggs and sperm are dispersed in the sea, fertilization, or union of egg and sperm which is a tiny hedgehog, is more likely to occur if the hedgehogs are grouped in large numbers in the same place to spawn same time.