The Kuhli Loach (Pangio kuhlii) is a small, slender freshwater fish resembling an eel. Known for its shy, nocturnal behavior, it is peaceful and thrives in groups. It is a bottom-dweller that helps clean leftover food and detritus.
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The Kuhli Loach (Pangio kuhlii) is a small, slender freshwater fish resembling an eel. Known for its shy, nocturnal behavior, it is peaceful and thrives in groups. It is a bottom-dweller that helps clean leftover food and detritus.
Slender, elongated body with alternating dark brown and yellowish bands. Small eyes and barbels around the mouth for detecting food. Adults reach 3–4 inches. Smooth fins and flexible body adapted for burrowing.
5–10 years with proper care
Omnivorous; feeds on small live or frozen foods like bloodworms, daphnia, and brine shrimp. Also accepts high-quality sinking pellets and occasional blanched vegetables like cucumber or zucchini.
Kuhli Loaches are ideal for peaceful community aquariums. Their nocturnal behavior, small size, and interesting burrowing habits make them both decorative and functional. Keeping them in groups ensures social interaction and reduces stress.
Moderate – requires groups, soft substrate, hiding spaces, and stable water parameters.
30+ gallons (for a small group of 5–6)
6.0 to 7.0
2–12 dGH
75–86°F (24–30°C)
3–4 inches
Peaceful species such as small tetras, rasboras, guppies, and dwarf cichlids. Avoid aggressive or very large fish.
Aggressive or very large fish that may harass or eat them. Avoid overly active midwater or surface fish that may stress them.
Pangio kuhlii
Cobitidae
Southeast Asia – Indonesia, Malaysia; inhabits slow-moving rivers, streams, and flooded forests with sandy or muddy substrates.
Highly social; best kept in groups of 5 or more. Peaceful with other community fish.
Feed 1–2 times daily. Offer live or frozen foods such as bloodworms, daphnia, or brine shrimp. Supplement with sinking pellets and occasional blanched vegetables. Ensure food reaches the bottom where they forage.
Breeding in captivity is rare and difficult. They scatter eggs over fine-leaved plants or substrate. No parental care is provided. Conditioning with high-protein foods may encourage spawning.
pH: 6.0–7.0, Temperature: 75–86°F (24–30°C), Hardness: 2–12 dGH, Ammonia/Nitrite: 0 ppm, Nitrate: <20 ppm
Sensitive to poor water quality; prone to ich or bacterial infections if stressed. Avoid sudden water changes and provide a soft substrate to prevent injuries.
Peaceful, shy, and nocturnal. Best kept in groups of 5 or more to encourage natural schooling behavior. Spends most of the day hiding under substrate, plants, or driftwood. Active at night while foraging.
Native to Southeast Asia, particularly Indonesia and Malaysia, the Kuhli Loach is admired for its slender, eel-like body and peaceful behavior. Adults reach 3–4 inches in length, making them suitable for community aquariums. They prefer soft substrate for burrowing, plenty of hiding spots, and dim lighting. A varied diet of live/frozen foods, sinking pellets, and occasional vegetables promotes health and longevity. Kuhli Loaches are excellent for controlling detritus and are fascinating to observe as they burrow and explore.