They are a bottom feeder and eat worms snails slugs vegetation mater.
no they dont .
Green anacondas prey on piranhas, catfish, apraima fish, and freshwater fish.
Catfish eat whatever is available, worms, fish, crayfish and any type of aquatic life they can find, they are not picky eaters.
Bigger fish eat angelfish such as catfish.
You may be wondering what makes Population decrease? Well here is your answer: If say for example, A type of fish lives in a lake, well if catfish are brought into that lake, they would eat that certain type of fish and that certain type of fish, well it's population will Decrease because catfish will eat them.
a dog fish
All the crazy fish do.
No
No, catfish will eat other fish, shrimp, water bugs, but no grass
yes catfish are scavengers and eat most things
No. Swai is a type of catfish, and catfish are not a kosher species of fish.
Many fish eat algae, it depends on which type of algae. But the fish that do eat algae are catfish, red tailed fish, Florida flag fish, and plecos.