Where are damselfish in a food web?

Question

please help!

Answer 1

Wikipedia: "

The diet of a damselfish can include small crustaceans, plankton, and algae.

Many species of damselfish live in tropical coral reefs, and many of those are kept as marine aquarium pets. However, many also live in temperate climates, such as the damsels inhabiting the coast of southern California and northern pacific Mexican coast."

so it can function as a primary consumer (eats algae) or a secondary consumer (eats plankton and small crustaceans). in other terms, its an omnivorous heterotrough, because it eats plants and animals and does not produce its own food. They inhabit coral reefs.