Aquatic plants.
They eat meat, fish, and other aquatic animals.
It depends on the fish, generally they eat insects or aquatic plants.
Small fishes often like to hide among plants, so that larger fishes do not find and eat them.
Some fish are adapted to eat aquatic plants. That's just what they eat.
They eat fish smaller than them and aquatic plants.
No. Aquatic plants do not have gills. Aquatic vertebrates, such as fish, have gills.
to eat it
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.
Aquatic plants help to oxygenate the water - replacing the oxygen that's used by the fish - and the decaying fish waste.
They eat primarily green vegetation, grain, aquatic plants, insects, and fish.