The Glowlight Rasbora, scientifically known as Trigonostigma hengeli, is a captivating and relatively small species of freshwater fish native to the slow-moving streams and rivers of Southeast Asia, particularly in Indonesia, Thailand, and Malaysia. This species is highly prized by aquarists for its vibrant coloration, peaceful demeanor, and active behavior, making it an excellent addition to well-maintained community aquariums, especially nano tanks.

Glowlight Rasboras are characterized by their slender, elongated bodies and striking colors. Their bodies typically display a translucent, silvery base color with a distinctive iridescent orange or red stripe that runs from the middle of their body to the base of their tail. This vibrant stripe resembles a glowing light, hence their common name. Additionally, they have a dark triangular marking near the tail, which further adds to their visual appeal.

In captivity, Glowlight Rasboras thrive in aquariums that closely mimic their natural habitat. A tank setup should include a soft, sandy substrate and plenty of live plants, such as Java moss, Anubias, and floating plants, which provide cover and create a comfortable environment. Adding driftwood and leaf litter can help replicate the tannin-rich waters they are accustomed to, enhancing their colors and providing additional hiding spots.

Water conditions should be slightly acidic to neutral, with moderate hardness. Maintaining stable water parameters through regular water changes and efficient filtration is crucial for the health and well-being of Glowlight Rasboras. They are relatively hardy fish but do best in clean, well-oxygenated water.

Glowlight Rasboras are social fish that should be kept in groups of at least six or more to promote their well-being and natural schooling behavior. Keeping them in a school not only reduces stress but also enhances their vibrant colors and active swimming patterns. They are peaceful and can be housed with other small, non-aggressive fish, making them ideal for community tanks.

Their diet should be varied to ensure they receive all necessary nutrients. Glowlight Rasboras are omnivorous and will readily accept high-quality flake foods, micro pellets, and live or frozen foods such as brine shrimp, daphnia, and bloodworms. Providing a mix of these foods will help maintain their health, vibrant colors, and energetic behavior.

Breeding Glowlight Rasboras in captivity can be relatively straightforward under the right conditions. They are egg scatterers, typically laying their eggs among fine-leaved plants or in spawning mops. To encourage breeding, maintain optimal water conditions with slightly acidic water and provide plenty of fine-leaved plants or spawning mops. Once spawning occurs, it is advisable to remove the adults from the breeding tank to prevent them from eating the eggs. The eggs usually hatch within a few days, and the fry can be fed with infusoria or finely crushed flake food until they are large enough to accept standard fare.

Overall, the Glowlight Rasbora is an excellent choice for aquarists looking for a small, colorful, and peaceful species. Their striking appearance, gentle nature, and dynamic behavior make them a delightful addition to any well-maintained aquarium. With proper care and the right environment, they can thrive and bring a touch of vibrant beauty and lively activity to your aquatic setup.