Kuhli Loach (Pangio kuhlii)

Kuhli Loach (Pangio kuhlii)

Species Overview

• Scientific Name: Pangio kuhlii
• Common Names: Kuhli Loach, Coolie Loach, Leopard Loach
• Origin: Southeast Asia (Indonesia, Malaysia, Thailand)
• Adult Size: Up to 10 cm (4 in)
• Current Size: ~5 cm (juvenile)
• Lifespan: 8–10 years
• Temperament: Peaceful, shy, nocturnal
• Care Level: Easy to moderate 

Tank Requirements

• Minimum Tank Size:
  • Single: 10 gallons
  • Group (recommended): 20 gallons or more
• Substrate: Fine sand (protects delicate barbels)
• Décor:
  • Dense planting, driftwood, caves, leaf litter
  • Smooth surfaces to avoid injury
• Water Parameters:
  • Temperature: 74–80°F (23–27°C)
  • pH: 5.5–7.0
  • Hardness: 1–10 dGH
• Lighting: Subdued
• Filtration: Gentle flow; cover intakes (they explore crevices)
• Cover: Tight lid—Kuhlis are escape artists

Diet & Feeding

• Type: Omnivore
• Preferred Foods:
  • Sinking pellets and wafers
  • Frozen/live: Bloodworms, brine shrimp, blackworms, daphnia
  • Occasional blanched vegetables (zucchini, spinach)
• Feeding Tips:
  • Feed at night or in shaded areas (they’re nocturnal)
  • Rotate diet for balanced nutrition
  • Avoid relying on leftovers—they need targeted feeding [

Behavior & Compatibility

• Social Needs: Best in groups of 4–6 for confidence
• Tankmates:
  • Peaceful species: Tetras, Rasboras, Corydoras, small Gouramis
  • Avoid aggressive fish or large predators
• Notes:
  • Safe with plants
  • May eat shrimp fry; adult shrimp usually safe 

Breeding

• Difficulty: High (rare in home aquariums)
• Conditions:
  • Dim lighting, soft acidic water (pH 5.5–6.5)
  • Plenty of hiding spots
  • Condition with high-protein foods
• Spawning:
  • Females develop greenish eggs
  • Eggs scattered among plants or spawning mops
• Fry Care:
  • Extremely delicate; require micro foods (infusoria, baby brine shrimp) 

Special Considerations

• Vulnerable to poor water quality—keep nitrates low
• Always provide hiding spaces to reduce stress