The Harlequin Rasbora (Trigonostigma heteromorpha) is a popular and visually striking freshwater fish known for its vibrant orange body and distinctive black triangle marking. These peaceful schooling fish thrive in groups of six or more, creating a dynamic and harmonious display in community aquariums. Ideal for beginner and experienced aquarists, Harlequin Rasboras are hardy, easy to care for, and well-suited for planted tanks.
Key Features:
•Vibrant Appearance: Bright orange body with a unique black triangular marking adds visual appeal to any aquarium.
•Schooling Behavior: Thrive in groups, adding movement and life to the midwater areas of the tank.
•Peaceful Nature: Ideal for community aquariums with other non-aggressive species.
•Hardy and Adaptable: Suitable for a variety of water conditions, making them beginner-friendly.
Care Requirements:
•Tank Size: Minimum 40 litres for a small group.
•Water Parameters: pH 6.0–7.5, temperature 22–27°C, soft to moderately hard water.
•Diet: Omnivorous; feed high-quality flakes, micro pellets, and occasional live or frozen foods such as brine shrimp or bloodworms.
•Tank Mates: Compatible with peaceful fish such as tetras, Corydoras, dwarf gouramis, and small loaches. Avoid aggressive or predatory species.
•Tank Setup: Provide a well-planted environment with open swimming spaces and subdued lighting to mimic their natural habitat.
Breeding Tips:
Harlequin Rasboras are egg layers that prefer broad-leaf plants for spawning. Provide plenty of plants like Java fern or Cryptocoryne for egg deposition. Eggs hatch in 24–36 hours, and fry can be fed infusoria or finely crushed flake food.