Chinese Hillstream Loach / Butterfly Loach,(Beaufortia kweichowensis) Aquarium Glaser Large /XL

Beaufortia kweichowensis, commonly known as the Chinese Hillstream Loach or Butterfly Loach, is a fascinating freshwater fish prized for its unique appearance and specialized habitat needs. 

Species Overview

• Scientific Name: Beaufortia kweichowensis
• Common Names: Butterfly Loach, Chinese Sucker Fish, Hong Kong Pleco, UFO Pleco
• Family: Gastromyzontidae
• Size: Up to 7.5 cm (3 inches)
• Lifespan: 5–6 years
• Temperament: Peaceful, but can be mildly territorial with conspecifics
• Diet: Omnivore (algae, biofilm, blanched vegetables, and occasional protein)

Natural Habitat

• Origin: Xi Jiang River system, Southern China (Guizhou, Guangxi, Guangdong)
• Environment: Shallow, fast-flowing, highly oxygenated streams with rocky substrates and minimal vegetation 
• Adaptations:
  • Flattened body and fused pelvic fins form suction cups for clinging to rocks
  • Excellent at grazing biofilm and algae from surfaces

Aquarium Requirements

• Tank Size: Minimum 15 gallons for one; 30+ gallons for a group
• Water Parameters:
  • Temperature: 18–24°C (65–75°F)
  • pH: 6.5–8.0
  • Hardness: 4–12 dGH
  • Nitrates: <20 ppm
• Setup:
  • Strong water flow and high oxygenation (powerheads, airstones)
  • Rocky decor with smooth stones for grazing
  • Minimal plants; algae growth encouraged
  • Tight-fitting lid (they can climb glass!)

Feeding

• Natural Diet: Algae, biofilm, microorganisms
• In Captivity:
  • Algae wafers, spirulina, blanched veggies (zucchini, spinach)
  • Occasional protein (bloodworms, daphnia)
  • Avoid high-protein diets to prevent internal issues
• Tip: Grow algae on rocks in a separate container and rotate them into the tank 

Behavior & Compatibility

• Social Structure: Best kept in groups of 4–6
• Behavior:
  • Peaceful but males may defend feeding spots
  • Females tend to group in quieter areas
• Tankmates: Other peaceful, cool-water species like small rasboras, gobies, or shrimp