Turtles eat sea pens
Sea lilies eat tiny water organisms called plankton.
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plankton
Most of them scavenge the debris they can find also known as detritus. They eat decaying organic things and plankton as well. This is accomplished by sifting through the sediment.
Lobsters eat many variety of plankton. They are also known to eat crabs, sea urchins, sea stars, and small fish.
Sea cucumbers eat plankton and other organic material
Most Sea Anemones eat Mirco-organisms proto-plankton.
of course. They are eaten alive or cooked in several countries.
It eats plankton.
Sea eurchins look like plants but they are really animals and they eat plankton.
prawns eat plankton, tiny creatures in the sea