* Small crustaceans: Shrimp, crabs, and other small invertebrates.
* Insects: Larvae, worms, and other insects found in the water.
* Plankton: Microscopic organisms that drift in the water.
* Algae: They consume algae and other plant matter that grows in their aquatic environment.
* Detritus: They also scavenge for dead organic matter on the riverbed.
It's important to note that basa fish are raised in aquaculture farms, and their diet there is controlled and consists primarily of commercially produced fish feed. This feed is typically made up of fish meal, plant protein, and other nutrients to ensure their growth and health.