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When the prey is opened, the sea star pushes itsstomach out of its body and into the bivalve, secretingenzymes that digest the prey's soft body tissues. The liquefiedbivalve is then absorbed into the stomach. Sea stars feedoften, and their size depends on the amount of foodthey eat, not on their age.
Also know, how Starfish gets its food?
Their main sources of food are clams,oysters sand dollars and mussels, which are usually attached torocks or otherwise unable to escape quickly. They also eat snailsand injured fish, when they can find them. Not allstarfish hunt for meat, however. Starfish arepowerful hunters and primarily feed onmollusks.
Similarly one may ask, what do I feed a starfish?
As we mentioned before, they are grazers and eat foodwhich has fallen to the bottom of your tank, including fish flakes,pellets and any other food. Most species enjoy a meaty diet ofmollusks, so putting a few clams or mussels in your tank is a sureway to keep them happy.
Many different animals eat sea stars, includingfish, sea turtles, snails, crabs, shrimp, otters, birds andeven other sea stars. Though the sea star's skin ishard and bumpy, a predator can eat it whole if its mouth islarge enough. Predators with smaller mouths can flip thesea star over and eat the softerunderside.