Black Kuhli Loach

• ExerciseLow

  A calm, unhurried swimmer — peaceful surroundings suit them best.

• GroomingRoutine tank care

  Weekly partial water changes keep them in top shape.

• Living spaceNano-tank friendly

  Happy in a small, stable, well-filtered tank.

• Owner experienceSome experience helps

  A little know-how makes life smoother.

• Commitment8–12 years

  Plan for a long, loving relationship.

Health to watch: Ich (white spot) · Fin rot · Skin conditions

The Black Kuhli Loach (Pangio oblonga) comes from slow, shaded blackwater streams and peat swamps across India, Malaysia, Sumatra and Borneo, and reaches about 7 to 8 cm. Unlike the familiar banded kuhli it has no markings at all, wearing a uniform dark brown to near black. Like its relatives it spends much of the day buried in substrate or hidden under wood. Keep a group of at least six, since these fish are far more visible and relaxed in numbers, in a tank of 75 litres or more at 23-28C with a pH of 5.5 to 7.0 and soft water. Fine sand is essential rather than optional, because a gravel bed prevents burrowing and abrades the skin. Add driftwood, leaf litter and dim lighting. Feed sinking pellets, wafers, frozen bloodworm and daphnia after lights out, since it feeds mainly at night. As a scaleless fish it needs half-dose medication, and every tank gap must be sealed because kuhlis find their way into filter intakes.

• How active is a Black Kuhli Loach?

  Low. A calm, unhurried swimmer — peaceful surroundings suit them best.

• How much maintenance does a Black Kuhli Loach need?

  Routine tank care. Weekly partial water changes keep them in top shape.

• What tank size does a Black Kuhli Loach need?

  Nano-tank friendly. Happy in a small, stable, well-filtered tank.

• Is a Black Kuhli Loach a good fit for first-time owners?

  Some experience helps. A little know-how makes life smoother.

• How long do Black Kuhli Loach live?

  8–12 years. Plan for a long, loving relationship.

• What health issues affect the Black Kuhli Loach?

  Keep an eye out for Ich (white spot), Fin rot, Skin conditions. These are worth raising with your vet, along with any screening they recommend.

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