It eats especially sessile life forms include hard corals and sponges in aquarium.
yes
they eat mussels
no
Giant Sea Star (Pisaster giganteus) a/k/a Knobby Sea Star. Detail of the arm tip showing the optic cushion or "eye spot". Most sea stars have such a cluster of red-pigmented, light-sensitive cells at the tips of the arms. These optic structures do not actually form an image in the manner of a mammalian eye, but do allow the sea star to detect light and sense changes in its environment. Pillar Point.
clams
seaweed
no!
alge.
Birds and sea otters, will eat sea stars.
=A sea star really does not eat anything. If there is moss or algae on the item the sea star is clinging to, it will suck those up.=
They eat clams and musels.
no, a sea star needs so eat in order to survive, and it cannot use the sun for sugar and nutrients.
sea otters and sharks