Well, it could be a protist itself or a parasite. Some parasites eat Daphina. Or, as a protists itself, an amoeba can eat algae.
they eat by photosynthesis or by other organisms......
Amoeba eats other organisms and smaller protists
The only organisms that like to eat protists that I have heard of are other species of protists and people fond of Japanese cooking.
Heterotrophs
algae and small fish and protesitits
Protists have diverse feeding habits. Some protists are autotrophic, meaning they can produce their own food through photosynthesis. Others are heterotrophic, meaning they obtain nutrients by consuming other organisms or organic matter. Some protists are mixotrophic, combining both autotrophic and heterotrophic feeding strategies.
protists
They eat several unicellular organisms such as lean meats, celery bits, sea weed, human waste and hairs.
Most protist heterotrophs feed on bacteria, algae, other protists, and organic matter in their environment. They use various mechanisms such as phagocytosis, osmotrophy, or absorption to obtain nutrients.
No, most protists are unicellular organisms. Some protists can form colonies or be multicellular, but the majority are single-celled.
The smallest protists are typically single-celled organisms known as picoplankton. These tiny protists can be as small as 0.2 micrometers in size, making them some of the smallest eukaryotic organisms on Earth.
protists