Narrow-Wedge Harlequin

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Scientific Name

Trigonostigma espei

Min. Tank Size

10 gallons

Personality

Peaceful

Temperature

73-82°F

pH

6.0-6.5/2-10°dGH

Size

1.75"

Diet

Omnivore

Breeding

Egglayer

Compatibility

Other small Cyprinids, Livebearers, Tetras, Loaches, Catfish and Dwarf Cichlids.

Narrow-Wedge Harlequin

Also called Espe’s Rasbora or False Harlequin Rasbora, the Narrow-Wedge Harlequin originates from Southeastern Asia – mainly in Cambodia and Thailand. These fish typically have a copper or reddish coloration with a black, porkchop-shaped marking on their sides. Due to their similarities in appearance, these fish are often confused with Harlequin and Glowlight Rasboras. The main difference between these species is the body coloration.

Tank Set-Up

Narrow-Wedge Harlequin Rasboras are hardier than many other Rasboras and can adapt to a variety of water conditions. These fish are a friendly schooling species, best kept with six or more of their own species along with other peaceful community fish. Narrow-Wedge Harlequins show best in tanks with dark substrate and prefer their tanks to be well-planted. These fish prefer dim lighting and do not require strong filtration.

Feeding

The Narrow-Wedge Harlequin is fairly easy to feed in the home aquarium and will accept most aquarium foods offered. Feed the Narrow-Wedge Harlequin a staple diet of high-quality flakes supplemented daily with Artemia, bloodworms, brine shrimp, and/or Daphnia. To encourage the best in health and coloration of this species feed a varied diet on a regular basis.

Breeding

This species is somewhat difficult to breed but may spawn in soft, acidic water when provided with broad-leafed plants for depositing eggs. To encourage spawning, the breeding tank should be kept at a pH between 5.0 and 6.0 and at a temperature around 80 degrees Fahrenheit. It is believed that fish at least 1 year of age are more likely to spawn than younger fish, especially if they are conditioned on live and frozen foods. After spawning, it is best to remove the parent fish from the tank because they will likely eat any eggs they can find.