NK1 Blue Tail Borneo Hillstream Loach (Gastromyzon Ornaticauda)

The NK1 Blue Tail Borneo Hillstream Loach, scientifically known as Gastromyzon ornaticauda, is a rare and highly sought-after freshwater species known for its vibrant blue tail, striking body pattern, and fascinating behavior. Native to the fast-moving, oxygen-rich mountain streams of Borneo, this loach is perfectly adapted to high-flow environments and thrives in river-style or hillstream aquariums.

With its flat, disc-shaped body and strong pectoral fins, the NK1 Blue Tail can cling to rocks and glass even in strong currents. It grows to about 2–2.5 inches and features intricate markings along its body, making it a favorite among aquascapers and freshwater fish collectors seeking both utility and visual appeal.

This peaceful algae grazer helps control biofilm and microalgae growth, making it both beautiful and beneficial to your aquarium’s ecosystem. Best kept in small groups, it coexists well with other non-aggressive species and requires cool, clean, well-oxygenated water to thrive.

Key Features:

• Scientific Name: Gastromyzon ornaticauda

• Distinctive blue tail and ornate body markings

• Max Size: 2–2.5 inches

• Peaceful and ideal for community tanks

• Excellent algae and biofilm grazer

• Best for high-flow, oxygen-rich hillstream setups

The NK1 Blue Tail Hillstream Loach is a rare gem that brings both beauty and balance to any well-maintained freshwater aquarium.