Asian Bumblebee Catfish (Pseudomystus siamensis)

Asian Bumblebee Catfish — Pseudomystus siamensis

Bold stripes in a compact predator package

The Asian Bumblebee Catfish is a small but striking species known for its sharp black-and-golden banding. Its high-contrast stripes resemble a bumblebee pattern, making it stand out dramatically against dark substrate or planted backgrounds. With long flowing barbels and a sleek body shape, this catfish brings predator energy in a compact size.

Native to slow-moving rivers and flooded forest systems of Southeast Asia, Pseudomystus siamensis is primarily nocturnal. During the day, it prefers shaded hiding spots among driftwood or caves. At night, it becomes more active, patrolling the lower water column in search of food. Though small, it is still a true carnivore and will eat appropriately sized tank mates.

Growing to about 3–4 inches, this species is ideal for medium-sized community setups where its bold pattern and nighttime activity can shine.

Aquarium Setup

• Minimum Tank Size: 30 gallons (larger preferred for groups)

• Substrate: Sand or fine gravel

• Flow: Low to moderate

• Décor: Driftwood, caves, and shaded hiding areas

• Lighting: Dim to moderate

• Filtration: Good biological filtration with stable conditions

Tank Mates

Best with peaceful, similarly sized species:

• Medium tetras

• Rasboras

• Gouramis

• Peaceful barbs

• Other small, non-aggressive catfish

Avoid very small fish that may fit in its mouth and aggressive tank mates.

Water Parameters

• Temperature: 75–82°F (24–28°C)

• pH: 6.0–7.5

• Hardness: Soft to medium

• Water Quality: Clean and stable conditions essential

Diet

Carnivorous:

• Sinking carnivore pellets

• Frozen bloodworms

• Brine shrimp

• Small shrimp pieces