Synodontis nigriventris (Upsidedown Catfish)

Synodontis nigriventris, commonly known as the Upside-down Catfish, is a species of catfish belonging to the family Mochokidae. These unique catfish are native to Africa, specifically found in the Congo River Basin and its tributaries.

Here are some key characteristics and information about Synodontis nigriventris:

1. Distinctive Behavior: One of the most noticeable features of the Upside-down Catfish is its peculiar behavior of swimming upside down. They are well adapted to this upside-down orientation and are often seen clinging to the undersides of submerged objects, such as tree roots or rocks.

2. Physical Appearance: The fish has a sleek and streamlined body, with a flattened belly. The coloration can vary but is often dark brown to black on the upper side and lighter on the underside. They may have a series of pale spots or lines on their bodies.

3. Size: Adult Upside-down Catfish typically reach a length of around 4 to 6 inches (10 to 15 cm).

4. Habitat: They are found in slow-moving or standing waters, particularly in areas with submerged vegetation, roots, and woody debris. Their natural habitat includes rivers, streams, and flooded areas.

5. Diet: Upside-down Catfish are omnivores and feed on a variety of foods, including small invertebrates, insect larvae, and detritus. In the aquarium, they can be fed a balanced diet of high-quality pellets, live or frozen foods.

6. Aquarium Care: When kept in captivity, Upside-down Catfish require a well-maintained aquarium with plenty of hiding spots and areas with subdued lighting. They are generally peaceful but can be territorial, especially towards their own species. It's advisable to keep them in groups of at least three individuals.

7. Breeding: Breeding Upside-down Catfish in captivity can be challenging. They are known to lay their eggs on the undersides of objects. The fry may need to be separated from adult fish to ensure their survival.

8. Compatibility: Upside-down Catfish are generally compatible with other peaceful fish species. However, they may not be suitable for aquariums with aggressive or larger fish that could potentially harm them.

As with any aquarium fish, it's essential to research and understand their specific care requirements to provide them with a suitable and healthy environment. Always consider the size of the aquarium, water parameters, and the compatibility with other tank mates when keeping Upside-down Catfish.