herbivores fishes

Are Any Fish Herbivores? Surgeonfish and parrotfish are two familiar MAR examples, often seen browsing and scraping on reef algae. Are small fishes herbivore? Herbivores, such as ducks, small fish and many species of zooplankton (animal plankton) eat plants. Carnivores (meat eaters) eat other animals and can be small (e.g., frog) or large (e.g., lake