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Kuhli Loach

By The Aquarium Calculators Editorial Team ·

Pangio kuhlii

Complete Kuhli Loach care guide covering omnivore diet requirements, peaceful temperament, minimum 15 Gallons tank setup, and compatible freshwater tankmates. Difficulty: Easy.

Kuhli Loach

Quick Answer

Kuhli Loach (Pangio kuhlii) is a captivating and highly sought-after freshwater species. It requires a minimum 15 Gallons aquarium with a pH of 6.5 - 7.5 and temperature range of 22-26°C. This omnivore occupies the bottom zone and makes an excellent addition to community setups.

Intro

Kuhli Loach (Pangio kuhlii) is a captivating and highly sought-after freshwater species. Known for their peaceful nature and distinct appearance, they occupy the bottom levels of the aquarium and bring dynamic energy to any setup.

Setup

Kuhli Loach requires a stable, well-filtered aquarium of at least 15 gallons. They thrive best with moderate water movement and a reliable heater to maintain temperatures around 22-26°C. Ensure pH levels remain consistent between 6.5 - 7.5 to prevent stress and support long-term health.

Feeding

As a omnivore, the Kuhli Loach is not a picky eater. They should be fed a high-quality base of flakes, sinking pellets, or wafers. Periodic supplementation with frozen or live foods, such as bloodworms or brine shrimp, will boost their health and colors.

Compatibility

Kuhli Loach has a peaceful temperament. They are schooling fish and MUST be kept in a group of at least 3 individuals to exhibit natural schooling behavior and reduce stress. Avoid placing them with aggressive species or tankmates they are listed as incompatible with, such as: None.

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Tank Position
Bottom
Water Temp
22-26°C
Adult Size
See profile
Water pH
6.5 - 7.5

Species Characteristics

Adult Size
Lifespan
Growth Rate
moderate
Tank Compatibility
Community compatible
Indoor Aquarium
Yes

Water Parameters

Water Temperature
Humidity
Water pH

Tank Lighting

Tank Lighting
Standard lighting
Light Hours
N/A
Intensity
moderate

Feeding & Diet

Diet Type
Diet: Omnivore
Feeding Schedule
N/A
Live Food Options
N/A

Frequently Asked Questions

How many Kuhli Loaches should be kept together?
Maintain a minimum group of 5 to 6 individuals in a tank of at least 20 gallons (75 liters) with a footprint of 30x12 inches (75x30 cm). Kuhli loaches (Pangio kuhlii) are highly social bottom dwellers; groups under 4 cause chronic hiding and stress. A school of 8-10 displays natural writhing behavior and becomes more active at dawn/dusk. Provide fine sand substrate (depth 1-2 inches), multiple hiding spots (driftwood, caves, PVC pipes), and smooth decorations. Avoid gravel and sharp edges that damage their skin.
What are the exact water parameters for Kuhli Loaches?
Target pH 6.5 - 7.5, General Hardness 3 - 10 dGH, Carbonate Hardness 2 - 8 dKH, Total Dissolved Solids 80 - 200 ppm, Electrical Conductivity 160 - 400 μS/cm, and temperature 75°F - 85°F (24°C - 29.5°C). They prefer stable, warm water; temperatures below 72°F (22°C) cause stress. Maintain nitrates below 15 ppm with weekly 25% water changes. Use a sponge filter or gentle HOB; strong currents stress them. Add driftwood and leaf litter. Sand substrate is mandatory; gravel damages barbels. Avoid copper-based medications.
What is the dietary and medication protocol for Kuhli Loaches?
They are omnivores requiring 40% protein, 10% fat, 50% plant matter. Feed sinking catfish pellets, shrimp granules, frozen bloodworms, blackworms, and blanched zucchini after lights out. They feed at night; use a red flashlight to observe. Offer food in the same spot daily. Medication alert: Extremely sensitive to copper (0.1 mg/L lethal) and formalin. Scaleless; use malachite green at quarter dose (0.025 mg/L). Praziquantel is safe. Avoid salt (tolerance <2 ppt). Quarantine with metronidazole at half-strength.
How to breed Kuhli Loaches in captivity?
Breeding is rare but possible. Condition a group of 6-8 with live blackworms and bloodworms for 4 weeks. Simulate rainy season: Lower water level to 5 inches (12 cm), raise temperature to 82°F (28°C), perform 40% water change with cool (68°F/20°C) RO water (pH 6.5) over 2 hours. Provide spawning mops or dense java moss. Spawning occurs at night; female releases 50-200 adhesive eggs. Remove parents after spawning. Eggs hatch in 48-72 hours at 78°F (25.5°C). Fry feed on infusoria for 5 days, then microworms, then baby brine shrimp. Keep tank dark first week.