Producers are organisms that convert inorganic matter into organic matter through photosynthesis or chemosynthesis. Examples of producers include plants, algae, and certain bacteria.
Consumers are organisms that must consume other organisms to obtain energy. Primary consumers are those that feed directly on producers, while secondary consumers feed on primary consumers. Clownfish fall into the category of secondary consumers as they prey primarily on small invertebrates like zooplankton and crustaceans.
Decomposers are organisms that break down dead organic matter, releasing simple substances back into the environment. Examples of decomposers include fungi, bacteria, and detritivores such as worms and insects.
Therefore, clownfish can be classified as secondary consumers within the ecological community they inhabit.