Depending on the organism it could be anything. Some fish eat other fish, while others eat algae etc.
sea kelp
Most Sea Anemones eat Mirco-organisms proto-plankton.
Deep-sea organisms have been difficult to study because the ocean floor is hard to get to.
sea lions eat krill, penguins.
Sea lilies eat tiny water organisms called plankton.
they usually die
These organisms do not need oxygen. They are called anaerobes.
Deep sea producers are the organisms that live so far down in the ocean, that they have to make their own food in order to live.
bacteria
the ones that like eating sea cucumbers
Sea lilies eat tiny water organisms called plankton.
Deep-sea organisms depend on chemoautotrophic bacteria, which use chemical energy from sources like sulfur compounds to fix carbon dioxide and synthesize organic molecules through a process called chemosynthesis. This allows deep-sea organisms to survive in environments where sunlight cannot penetrate for photosynthesis.