Common name: Spinulosida

Spinulosida is an order of sea stars characterized by their numerous small spines on the aboral surface. They are found in a variety of marine environments and can be an interesting addition to a reef aquarium due to their scavenging habits. Members of this order often feed on detritus and algae, helping to keep the tank clean. They are generally hardy but should be introduced to well-established aquariums with stable water conditions. It's important to ensure that their dietary needs are met and that they are compatible with other tank inhabitants.

1. 
   Common name: Warty sea star

   Scientific name: Echinaster callosus
2. 
   Common name: Luzon Sea Star

   Scientific name: Echinaster luzonicus
3. 
   Common name: Red starfish

   Scientific name: Echinaster sepositus
4. 
   Common name: Pacific blood star

   Scientific name: Henricia leviuscula
5. 
   Common name: Bloody Henry starfish

   Scientific name: Henricia oculata