TopFin Aquatics Species Profile: Tiger Loach (Syncrossus hymenophysa)

Commonly known as the Green Tiger Loach, Zebra Loach, Tiger Botia, or Banded Loach, the Tiger Loach is a striking and rare freshwater species admired for its bold appearance, scavenging habits, and unique group behaviour.

Natural Habitat

• Origin: Native to fast-moving mountain streams and large river systems in Peninsular Malaysia, Borneo, and Sumatra.

• Environment: Prefers soft substrates, often found near submerged boulders, driftwood, and fallen trees where they can hide and forage.

Physical Characteristics

• Size: Can grow up to 21 cm (9 inches) in length.

• Appearance: Features a brownish-tan body marked with 12 to 15 vertical bars, each edged in a greenish-blue iridescence. These stripes begin at the base of the dorsal fin and continue downward toward the head.

Behaviour and Compatibility

• Temperament: More aggressive than most loaches, particularly during feeding times.

• Best Kept in Groups: A group of 8 or more helps establish a stable social hierarchy and minimises aggression.

• Tank Mate Warning: Not suitable for aquariums with Cichlids, long-finned fish, or other peaceful community species.

• Escape Risk: Known to be excellent jumpers, so a tightly fitting aquarium lid is essential.

Tank Requirements

• Tank Size: Requires a large, well-oxygenated aquarium with ample swimming space.

• Aquascaping: Provide plenty of hiding spots using rocks, driftwood, and dense planting. Visual barriers help reduce territorial disputes.

• Lighting: Prefers low to moderate lighting.

• Water Parameters:

  • Temperature: 25–30°C (77–86°F)

  • pH: 6.5–7.5

• Filtration: A strong filter and regular partial water changes are crucial for maintaining water quality.

• Feeding: Carnivorous diet including live or frozen foods, sinking pellets, catfish granules, and high-quality flakes.

Breeding and Behaviour Notes

• Social Structure: In groups, Tiger Loaches establish a complex social hierarchy and become more active and interesting to observe.

• Breeding in the Wild: During the rainy season, they migrate into flooded forest areas to spawn, typically around submerged tree roots or debris.

• Captive Breeding: Rarely bred in home aquariums due to their migratory breeding habits and environmental requirements.