Encyclopaedia
Long-whiskered Catfish
Mystus gulio
An active and hardy brackish catfish, famous for its exceptionally long barbels and constant swimming.
- Family
- Bagridae
- Origin
- Asia meridionale e sud-orientale: coste di India, Bangladesh, Myanmar e Malesia, in acque salmastre e fiumi.
- Origin
- South and Southeast Asia
- Tank use
- Used in 0 tanks
Share
20 °C - 28 °C
7 - 8.2
Freshwater / Brackish
Bottom and middle
20 cm
Species description
Geographical Origin and Habitat: Coastal estuaries, mudflats, and silt-bottomed rivers of South and Southeast Asia. Highly adaptable.
Taxonomy and Morphology: Family Bagridae. Scaleless, streamlined body. Distinctive for its extremely long maxillary barbels. Grows up to 20 cm.
Social Behavior: Schooling species. Highly active compared to other catfishes. They swim in groups across the bottom and middle columns.
Coloration and Sexual Dimorphism: Plain steel-grey or olive-grey body with a silvery belly. No external sexual dimorphism.
Care, breeding and tankmates
Aquarium Setup: Standard setup with sand substrate and smooth driftwood logs. Open space for active swimming is essential.
Diet and Feeding: Voracious omnivore. Readily eats sinking pellets, earthworms, frozen mysis, and chopped shellfish. Feed in the evening.
Water Quality: Highly adaptable. Lives well in hard freshwater, but light brackish water (SG 1.002-1.005) is preferred for long-term health.
Compatibility and Cohabitation: Keep with large brackish fish. Avoid small species, as they will be eaten during the night.
Aquarium Breeding: Egg scatterer. Undocumented in home aquariums due to their migratory breeding habits in nature.
Risks and Diseases: High jumping risk. Keep the aquarium covered securely. Prone to skin damage from rough substrates.
Fish profile
- Temperament
- Pacifico ma predatore opportunista di piccoli pesci
- Diet
- Onnivoro vorace, consuma pellet, cibo congelato, gamberi e detriti
- Tank level
- Bottom and middle
- Minimum group
- 3
- Adult size
- 20 cm
- Minimum tank volume
- 200 L
- GH
- n/a
- KH
- n/a
- TDS
- n/a
- Conductivity
- n/a
- Feeding frequency
- 1-2 volte al giorno
- Bioload
- Medio
- Flow
- Moderato
- Jump risk
- Covered tank required
- Reproduction
- Riproduzione ovipara; non documentata in acquari domestici.
- Compatibility & tankmates
- Mantenere in piccoli gruppi in vasche spaziose con pesci salmastri grandi. Evitare coinquilini piccoli.
Ecological Estimates & Biological Models
- Trophic level
- 4 ± 0.5 se
- Resilience
- Medium (1.4 - 4.4 years)
- Generation time
- 1.5 years
- Phylogenetic uniqueness (PD50)
- 0.5
- Bayesian Length-Weight
- a = 0.0123, b = 2.95
Image gallery
Licensed images linked to the species or, when marked, to the closest representative taxon.
Related species
Other recommended species with similar care requirements and water parameters.





