The Airsac Catfish: A Unique Species of Catfish

The Airsac Catfish is a unique species of catfish found in the rivers and streams of South America. With its distinctive appearance and fascinating behavior, this catfish has become a popular aquarium fish among fish enthusiasts around the world. In this article, we’ll explore the characteristics, behavior, and care of the Airsac Catfish.

Physical Characteristics

The Airsac Catfish, also known as the False Cory, is a small catfish that grows to a maximum length of 4 inches. Its body is elongated and flattened, with a distinctive arched back that gives it a humpbacked appearance. The catfish has two pairs of barbels, one pair near the mouth and the other near the eyes, which it uses to locate food.

Its coloration is grayish-brown, with black spots on the body and fins. The most unique physical characteristic of the Airsac Catfish is its inflated air sac, which is located on the underside of its body. This air sac allows the catfish to gulp air from the surface of the water, which it uses to supplement its oxygen supply.

Asian Catfish


The Airsac Catfish is a peaceful and social fish that is often found in groups in the wild. It is a bottom-dwelling fish that feeds on small invertebrates, such as worms and crustaceans. The catfish is also known to feed on algae, which it scrapes off rocks and other surfaces with its mouth. The Airsac Catfish is an active fish that enjoys swimming and exploring its environment. It is also known for its unique behavior of swimming upside down, which is thought to be a way of exploring its environment and locating food.

Aquarium Care

The Airsac Catfish is a hardy fish that is easy to care for in an aquarium setting. It prefers a tank with a sandy substrate and plenty of hiding places, such as caves and plants. The catfish is a social fish and should be kept in groups of at least six individuals. The aquarium should be well-aerated, as the catfish requires oxygen from both the water and the air.

The Airsac Catfish is an omnivore and should be fed a varied diet that includes both meaty foods, such as bloodworms and brine shrimp, and vegetable matter, such as spirulina algae. It is important to avoid overfeeding the catfish, as it has a tendency to become overweight.


The Airsac Catfish is a relatively easy fish to breed in an aquarium setting. Breeding pairs should be selected and placed in a breeding tank with a soft substrate and plenty of hiding places. The catfish will lay its eggs in a cave or other hidden location, where the male will fertilize them. The eggs will hatch in 3-4 days, and the fry will become free-swimming within a week. The fry should be fed small, frequent meals of newly hatched brine shrimp or other suitable food.

Founding Destination

Asian catfish, also known as pangasius catfish or basa fish, are native to Southeast Asia, specifically the Mekong and Chao Phraya river basins in Vietnam, Laos, Cambodia, and Thailand. They are commonly farmed in these countries, as well as in other parts of the world.


The Airsac Catfish is a unique and fascinating species of catfish that is popular among fish enthusiasts around the world. Its distinctive appearance, interesting behavior, and ease of care make it a great addition to any aquarium. If you’re looking for a peaceful and social fish that is sure to stand out in your aquarium, the Airsac Catfish is definitely worth considering.

With its inflated air sac and upside-down swimming behavior, it’s sure to be a conversation starter among your fish-loving friends.