White-whiskered Catfish

Bagrichthys majusculus

Photo of aquarium fish White-whiskered Catfish
Natural range
  • Mekong River Basin
  • Chao Phraya River Basin
  • Thailand area
  • Laos area
CatfishConservation status: Data deficient DD

Family:Bagrid Catfishes (Bagridae)

The White-whiskered Catfish, scientifically known as Bagrichthys majusculus, belongs to the family Bagridae, or Bagrid Catfishes. This fish will find its admirers, despite its tendency to hide in shelters for most of the time and its rather unfriendly attitude towards conspecifics and other bottom dwellers. However, it is undemanding and easy to care for, making it a suitable choice even for beginner aquarists.

Required aquarium volume
250 L
Size in aquarium
17 cm
Temperature
24 – 28 °C
Temperament
Semi-peaceful (including aggression during spawning / intraspecific conflicts)
Parameters
Temperature24 – 28 °C
Water pHSlightly acidic (5.5) – Neutral (7)
Water dHVery soft (1) – Very hard (21)
Water salinityno salt (freshwater)
Size in aquarium17 cm
Lifespan6 years
TemperamentSemi-peaceful (including aggression during spawning / intraspecific conflicts)
Toward small fishnot a predator
Required aquarium volume250 L
Lightingdimmed
Substrateany (no restrictions)
Water flownone or stagnant (no flow)
FeedingSinking (any)
CareHarem (1 male and several females)

Frequently asked questions

The essentials: size, tank volume, water parameters and care

How big does White-whiskered Catfish get?

An adult reaches 17 cm in length. Plan the tank around the maximum size: the fish quickly outgrows a cramped setup.

What size aquarium does White-whiskered Catfish need?

The minimum recommended volume is 250 L. A smaller tank speeds up nitrate build-up and raises stress levels.

What water parameters does White-whiskered Catfish need?

Temperature 24–28 °C, pH 5.5–7, hardness 1–21 dGH. Stability matters more than exact values: sudden swings are harder on the fish than a small deviation from the ideal.

How long does White-whiskered Catfish live?

Around 6 years when kept properly. Lifespan depends directly on tank volume, water quality and a varied diet.

Is White-whiskered Catfish aggressive?

Temperament: semi-peaceful (including aggression during spawning / intraspecific conflicts). Keep this in mind when choosing tank mates.

How many White-whiskered Catfish should be kept together?

Recommended setup: harem (1 male and several females). Ignoring this is a common cause of stress and disease.

What does White-whiskered Catfish eat?

Diet type: sinking (any). Feed small portions that are finished within a couple of minutes — overfeeding does more harm than underfeeding.

What is the scientific name of White-whiskered Catfish?

The scientific name of the species is Bagrichthys majusculus, family Bagrid Catfishes (Bagridae).

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