Short answer: yes.
Aquatic plants.
They eat meat, fish, and other aquatic animals.
It depends on the fish, generally they eat insects or aquatic plants.
They eat fish smaller than them and aquatic plants.
Some fish are adapted to eat aquatic plants. That's just what they eat.
Small fishes often like to hide among plants, so that larger fishes do not find and eat them.
Fish that eat plants are commonly referred to as herbivores. These fish primarily consume algae, aquatic plants, and other vegetation. Examples of herbivorous fish include parrotfish, surgeonfish, and certain species of tilapia. Their feeding habits play an essential role in maintaining the health of aquatic ecosystems.
No. Aquatic plants do not have gills. Aquatic vertebrates, such as fish, have gills.
to eat it
Herons do not eat plants. The herons are carnivorous. The members of this family are mostly associated with water, and feed on a variety of live aquatic prey. The diet includes a wide variety of aquatic animals, including fish, reptiles, amphibians, crustaceans, molluscs and aquatic insects.
Geese will eat grass, land plants (including weeds), aquatic plants, insects, worms and some small fish.
smaller fish, mollusks, invertebrates, aquatic plants. the walking catfish is omnivorous.