Harlequin Rasbora (Trigonostigma heteromorpha): Harmony in the Aquarium
Water Type: Originating in the rivers of Sumatra and Indonesia, harlequin rasboras prefer mild to moderately hard water with a pH between 6.0 and 7.0. The ideal temperature is 22-26 °C.
Aquarium Size: For a group of harlequin rasboras, an aquarium of at least 76 liters with plants and places to hide is recommended.
Care and Behavior: They are peaceful and active fish that prefer to live in groups. They feed on dry, frozen or live food. Keep the water clean and well oxygenated.
Reproduction: Captive breeding can be challenging. Harlequin scratchers are free spawns and need specific conditions, such as fine plants and soft water.
Possible Diseases: They are susceptible to common diseases such as ichthyosis and bacterial infections. Keep the water in optimal conditions to prevent health problems.
Sexual Dimorphism: Sexual dimorphism is not externally evident. However, females may be slightly larger and rounder.
Colors and Varieties: Harlequin rasboras have a distinctive wedge-shaped orange pattern on their bodies, which contrasts with a dark blue body.
History and Origin: Introduced into the water hobby in the 1950 s, these scratchers are native to the rivers of Sumatra and Indonesia.
Adaptability and Popularity: Their active behavior and vibrant colors make them a popular choice for community aquariums.
Trivia:
- Wedge Pattern: The wedge-shaped pattern on their bodies resembles a face mask, giving them a distinctive look.
- Cardumen Behavior: They love swimming in groups, which adds a beautiful shoal show to the aquarium.
Weight and Size: Harlequin rasboras are small fish, reaching approximately 3-5 cm in length. Although their weight is light, their group presence and vibrant colors make them stand out.
These scratchers are a charming and peaceful addition to community aquariums. With their distinctive pattern and group behavior, they contribute to the overall harmony and beauty of the aquatic environment.
