Description

Overview:
The Asian Upside-Down Catfish (Mystus leucophasis) is a fascinating and unique species named for its habit of swimming belly-up, especially when feeding at the water‚Äôs surface or resting under driftwood. With its sleek, torpedo-shaped body, long barbels, and shimmering silver-to-dark coloration, this nocturnal oddball brings both character and movement to medium-to-large freshwater tanks.

Origin:
Native to Southeast Asia, particularly the Irrawaddy River basin in Myanmar, Mystus leucophasis inhabits slow-moving rivers, swamps, and flooded forests where it hunts at dusk and dawn.

Feeding:
An opportunistic omnivore, this catfish accepts a wide variety of foods including sinking pellets, bloodworms, brine shrimp, insect larvae, and frozen meaty foods. Will also feed near the surface‚Äîoften upside down‚Äîmaking it a joy to watch during mealtimes.

Tank Mates:
Peaceful to semi-aggressive depending on size and environment. Best kept with similar-sized or larger peaceful fishsuch as gouramis, rainbowfish, larger barbs, loaches, or calm cichlids. Avoid small fish or shrimp, which may be mistaken for food.

Water Parameters:

Temperature: 75‚Äì82¬∞F (24‚Äì28¬∞C)
pH: 6.5‚Äì7.5
Moderate hardness
Minimum Tank Size: 55 gallons
Provide plenty of driftwood, hiding spots, and dim lighting

Behavior & Compatibility:

Nocturnal but may become more active in dim tanks
Best kept in groups of 3 or more for natural schooling behavior
Prefers low to moderate flow, subdued lighting, and soft substrate

Special Notes:

Can grow up to 8‚Äì10 inches, so needs ample swimming space
Extremely hardy once established
Will thrive in planted or natural setups with cover and structure
Captivating for aquarists who enjoy unusual behaviors and oddball species

The Asian Upside-Down Catfish is a mysterious, elegant, and intelligent species that adds motion and intrigue to any large freshwater aquarium. Its unique swimming style and peaceful temperament make it a standout choice for aquarists looking for something different.