Common name: Horned Sea Star

Protoreaster is a genus of sea stars commonly found in shallow waters of the Indo-Pacific region. Known for their distinctive horn-like spines, species within this genus, such as Protoreaster nodosus, are popular in the reef aquarium trade. They are omnivorous, feeding on detritus, small invertebrates, and sometimes corals, which can make them unsuitable for reef tanks with delicate corals. They require stable water conditions and plenty of space to roam.

1. 
   Common name: red knobbed starfish

   Scientific name: Protoreaster lincki
2. 
   Common name: chocolate chip starfish

   Scientific name: Protoreaster nodosus