They sleep hidden beneath sand, keeping quiet.
always
well starfish can sleep up to 12 hours like humans,but they dont have to sleep...
They don't have to sleep.
yes they do they hide under the sand and stay very quiet
there are cusion starfish, reef starfish, spiny starfish and fire brick starfish in new zealand.
It is called toilet water.
Yes they can
Sure, starfish larvae are planktonic. Adult starfish are not.
Most starfish graze on film algae, and tend to go to where there are high quantities of algae. Chances are your tank has lights, and the algae will grow stronger closer to the light. The other reason is the starfish could be getting bullied by other tank mates, so it's just getting a break from the others. Look at your tank at night with a torch, the starfish should be down the bottom grazing while the other fish sleep.
Sharks, fish and manta rays are predators of the starfish. Larger starfish also prey on and attack smaller starfish.
The starfish that is on his face in the museum.
Starfish Ancestors