Katibas Sucker Loach Care Guide

Gastromyzon katibasensis · Freshwater Fish

Katibas Sucker Loach
AI-generated illustration of Katibas Sucker Loach
Temperature
68-75°F
pH
6.5-7.5
Adult size
~6.5″ (16.5 cm)
Suggested tank
15+ gal
Group size
5+ together
Origin
Borneo
Family
Gastromyzontidae

What Katibas Sucker Loach look like

The Katibas Sucker Loach (Gastromyzon katibasensis) exhibits a distinctive laterally compressed, fusiform body shape, reaching a maximum adult size of approximately 3 to 10 inches. Its coloration ranges from brown to tan, adorned with darker mottled spots that provide effective camouflage against the rocky substrates of its native hillstream habitat. Notably, this species possesses a fused pelvic suction disc, which is an adaptation for clinging to fast-flowing surfaces, allowing it to maintain position in turbulent waters. The loach's dorsal fin is elongated and well-developed, aiding in stabilization during swift currents, while its anal fin is also elongated, contributing to its streamlined profile. The absence of a swim bladder further emphasizes its benthic lifestyle, as it relies on its robust body structure for navigating the substrate rather than buoyancy.

Behavior & temperament

The Katibas Sucker Loach is primarily a benthic species, often found in fast-flowing streams and rivers where it exhibits a solitary to semi-social behavior, typically forming loose aggregations rather than strict schools. This species is known for its territoriality, especially among males during breeding periods, which can lead to displays of aggression. Breeding behavior involves egg scattering, where females release eggs onto suitable surfaces, and males subsequently fertilize them. The loach's temperament is generally peaceful towards conspecifics, although it can exhibit defensive behaviors when threatened, utilizing its suction disc to cling tightly to surfaces.

Diet & feeding

In the wild, the Katibas Sucker Loach primarily feeds on algae and detritus, making it an obligate herbivore that requires a diet rich in plant matter. In captivity, it thrives on high-quality spirulina-based foods, blanched vegetables, and algae wafers to meet its nutritional needs.

Behind the name

Gastromyzon (belly sucker); katibasensis (of Katibas, referring to its native region in Borneo).

Plan your tank

Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.

Keeping Katibas Sucker Loach?

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