Common name: Fire Urchins

Echinothuriidae, commonly known as Fire Urchins, are a family of sea urchins notable for their bright colors and long, venomous spines. They are found in various marine environments but are not commonly kept in home aquariums due to their venomous nature and potential to harm other tank inhabitants. In the wild, they play a role in the ecosystem by grazing on algae and detritus. Hobbyists interested in these creatures should prioritize safety and ensure a species-appropriate environment with plenty of hiding places and suitable substrate.

1. 
   Common name: Fire Urchin

   Scientific name: Asthenosoma ijimai
2. 
   Common name: variable fire urchin

   Scientific name: Asthenosoma varium