Bearded Whiptail (Sturisomatichthys barbatum) Care Guide
A slender South American whiptail catfish of the family Loricariidae; males develop cheek bristles. Peaceful, plant-safe and an active daytime algae grazer.
Overview
Sturisomatichthys barbatum is a slender whiptail catfish of the family Loricariidae (subfamily Loricariinae). Mature males develop a fringe of bristles (odontodes) on the cheeks, giving the fish its "bearded" name. Despite a reported standard length near 28 cm, its gracile build makes it suitable for medium-sized aquaria.
Taxonomy
- Family: Loricariidae
- Scientific name: Sturisomatichthys barbatum
- Subfamily: Loricariinae
- Common synonyms: Bearded Twig Catfish
Habitat
The form is associated with the Paraguay and Paraná river basins and adjacent South American watersheds. It favours clear, well-oxygenated water with moderate flow, fine sand or smooth substrate to protect its underside, driftwood and shaded retreats. The species is believed to be a facultative air breather.
Tank requirements
- Minimum tank volume: 200 L (53 gal)
- Adult size: 18-22 cm (7.1-8.7 in)
- Temperature: 24-28 °C (75-82 °F)
- pH: 6-7.5
- GH: 2-12 °dGH
- Lifespan: 8-12 years
Diet
A herbivorous grazer, it does best on a primarily vegetable diet. Blanched vegetables and spirulina-based foods are appropriate, supplemented by the algae and biofilm that grow on wood and rock. It is an effective algae grazer in a planted tank.
Compatibility
Temperament is peaceful and the fish stays near the bottom. Unlike its Farlowella relatives it tends to be more active during the day. It is plant-safe and suits calm community fish such as small tetras and Corydoras; aggressive or territorial plecos should be avoided.
Breeding
Reproduction follows the whiptail pattern: eggs are deposited on a firm surface and guarded by the male, who provides exclusive parental care. Females are smaller and lack the cheek bristles of mature males. Soft, slightly acidic water favours spawning.