Blue Tail Polka Dot Loach - (Gastromyzon ctenocephalus)

🐟 Blue Tail Polka Dot Loach – (Gastromyzon ctenocephalus)

The Blue Tail Polka Dot Loach is a small, distinctive hillstream loach native to fast-flowing streams in Southeast Asia. Known for its striking polka dot pattern and vibrant blue tail, this loach is admired for both its unique appearance and its ability to thrive in high-oxygen, flowing water environments.

🌊 Habitat & Care

• Origin: Mountain streams of Borneo and surrounding regions in Southeast Asia.
• Tank Size: Minimum 30 gallons.
• Water Conditions: Prefers cool, well-oxygenated water with a temperature of 68–75°F (20–24°C) and a slightly acidic to neutral pH of 6.5–7.0.
• Tank Setup: Requires strong water flow, smooth rocks, and plenty of hiding spots mimicking its natural fast-flowing stream habitat.

🍽️ Diet

• Omnivorous — grazes on biofilm, algae, and small invertebrates.
• Accepts sinking wafers, algae wafers, and blanched vegetables.

⚖️ Temperament

• Peaceful and shy.
• Best kept in groups to encourage natural behavior.

🧠 Behavior & Special Considerations

• Size: Up to 3 inches (7.5 cm).
• Adapted to fast currents and high oxygen environments.
• Requires pristine water conditions and strong filtration.

📋 At a Glance

💡 The Blue Tail Polka Dot Loach is a unique and fascinating species ideal for aquarists with cool, well-oxygenated tanks and a passion for hillstream fish.