How to Care for Glowlight Rasbora?

Glowlight Rasboras are small, peaceful fishes that are ideal for beginners. They are known for their beautiful colors and active nature. To keep them happy and healthy, you need to provide them with a suitable tank, proper water conditions, and a balanced diet.

glowlight rasbora

Glowlight Rasbora Species Profile and Identification

Glowlight Rasboras are small, peaceful, and colorful freshwater fish that are popular among aquarists. They are scientifically known as Trigonostigma hengeli, named after the renowned ichthyologist Dr. Herbert R. Axelrod’s friend Hengel. Glowlight Rasboras typically grow up to 2 inches long and have a striking golden-orange band that runs from the snout to the end of their bodies, set against a shiny silver-blue base color.

The fish is easy to identify due to its vibrant color, which differentiates it from other Rasbora species. The male Glowlight Rasbora has a slender body and is more colorful than the female, while the female is rounder. In addition, the male has a black line above the orange stripe, while the female does not. Their fins are usually a reddish-brown, with pelvic fins being transparent.

The Glowlight Rasbora requires a well-maintained tank with pristine water conditions, and a suitable diet to sustain their health. It’s important to provide a peaceful and relaxing environment, which can be achieved by creating a natural habitat and maintaining optimal water quality.

Glowlight Rasbora Supplies

To properly care for your Glowlight Rasboras, you will need a few essential supplies. This table lists the recommended supplies for successfully maintaining a Glowlight Rasbora tank:

Supplies Description
Aquarium A minimum 10-gallon tank is recommended
Heater Keep the temperature between 75-82°F
Filter A filter with a slow flow rate is best
Lighting These fish prefer low to moderate lighting
Substrate A fine-grained substrate is recommended
Plants Silk or live plants provide hiding spots and cover
Decor Caves or rocks can be added for hiding spots
Water Conditioner Necessary for removing harmful chemicals from tap water
Fish Food High-quality flake or pellet food, supplemented with live or frozen brine shrimp

Remember to rinse off any new equipment before adding it to your tank and do not use soap or any chemicals when cleaning it. With the right supplies, you can create a healthy and comfortable environment for your Glowlight Rasboras to thrive in.

Before Getting Glowlight Rasboras

Before purchasing Glowlight Rasboras, ensure that you have enough space to accommodate them. Ensure that the tank water is at appropriate conditions for the species and that your aquarium is completely set up before adding any fish to ensure their safety.

Familiarize yourself with the Glowlight Rasbora care needs, their interaction with other species, and any particular diseases to watch out for.

Glowlight Rasbora Appearance

Glowlight Rasboras are small, colorful freshwater fish with a streamlined body that measures around 1.5 inches long. They have a shiny and metallic silverish-brown appearance, with a bold orange stripe stretching from the nose to the forked tail, flanked by a smaller olive-green stripe above and below. The white to yellowish belly gives a nice contrast to the bold midline stripe.

Male Glowlight Rasboras have slightly pointed anal and dorsal fins with a deeper, brighter color than females, and the adipose fin of both is dark. The dorsal is slightly curved and slightly pointed at the tip. They also possess a single black vertical stripe on their eye and a dotted black spot on their caudal fin.

Overall, their appearance makes them a highly desirable species for aquarists looking to add a pop of color to their tanks.

Glowlight Rasbora Origin and Natural Habitat

The Glowlight Rasbora originates from Southeast Asia, particularly in the Borneo island region where it inhabits shallow, slow-moving rivers and streams. Their natural habitat is heavily vegetated, including overhanging trees and leaf litter on the bottom of the water.

In the wild, Glowlight Rasboras live in large groups, called shoals, in order to protect themselves from predators. They are also known to be found in areas with low light levels, which is why a dimly lit aquarium can help them feel more comfortable and reduce stress.

Glowlight Rasbora Tank Setup

Setting up the right tank environment for your Glowlight Rasboras is vital for their well-being. A minimum of 15 gallons of water is required for five to six Glowlight Rasboras, but ideally, a 20-gallon tank is recommended for a small school of these fish.

It is essential to provide suitable hiding places such as plants, rocks, driftwood, and caves to replicate their natural habitat. Ensure that the substrate is soft and sandy, as Glowlight Rasboras like to forage for food at the bottom of the tank, and the water flow is moderate.

Oxygen-rich, clean, and freshwater must be maintained at a temperature between 72°F to 82°F (22°C to 28°C) with a pH range of 6.0 to 8.0. A heater and thermometer are required to monitor the temperature and maintain consistency.

Glowlight Rasbora Water Requirements

Glowlight Rasboras prefer a temperature range from 75°F to 80°F and a pH range from 6.0 to 7.5. They prefer soft to slightly hard water, with a water hardness of 5 to 10 dGH. You should aim for a comfortable environment for your fish by keeping the water as stable as possible, using a high-quality filtration system, and performing regular water changes.

Keep an eye on the ammonia and nitrate levels, which should be kept to a minimum. Algae growth can be controlled using appropriate lighting conditions, feeding practices, and regular aquarium maintenance. You may also consider using live aquarium plants to help with water quality, as these plants will absorb excess nutrients from the water.

Overcrowding the tank can cause a decrease in water quality and promote disease, so avoid overstocking your tank with too many fish. Finally, always avoid using chemicals such as chlorine, as this can be harmful to fish.

Glowlight Rasbora Diet and Feeding

Glowlight rasboras are omnivorous and can be fed both meaty and plant-based diets. They have small mouths, so their food should be small enough to fit in their mouths. You can feed them a combination of flake food, freeze-dried or frozen brine shrimp, bloodworms, or micro pellets. To ensure a healthy diet, it is recommended to vary their diet and incorporate some vegetable matter such as spirulina flakes or boiled spinach.

Overfeeding can cause health problems for your Glowlight rasboras, so it is important to feed them in moderation. Offer them small amounts of food two to three times per day, and only give them as much as they can eat within a few minutes. Any excess flakes should be removed from the tank to avoid fouling the water.

You may also consider using a feeding ring to prevent flakes or pellets from spreading throughout the tank. This helps your Glowlight rasboras access the food more readily, and more peacefully.

As with their water conditions, consistency is key when feeding your Glowlight rasboras. It is important to maintain a consistent feeding schedule and food variety to ensure their health and well-being.

Glowlight Rasbora Care Schedule

Maintaining a consistent care schedule for your glowlight rasboras is an essential part of keeping them healthy.

  • Feed your glowlight rasboras a small amount of food twice a day, ensuring you don’t overfeed them.
  • Monitor the water quality in the tank and perform regular water changes as per the guidelines mentioned earlier.
  • Vacuum the substrate and clean the filter once a month to remove leftover food and waste.
  • Test the water regularly for pH, ammonia, nitrites, and nitrates to keep the water parameters in check.
  • Check for signs of disease or stress in your glowlight rasboras such as clamped fins, lethargy, loss of appetite, or unusual behavior, and take necessary action promptly.
  • Keep the lighting in the aquarium consistent, with a regular 8-12 hours of light and 12-16 hours of darkness.
  • Keep in mind, whenever adding new fish to the tank, quarantine them for 1-2 weeks before introducing them to the main tank.

By following a consistent care schedule, you can create the best living conditions for your glowlight rasboras and help them thrive in your home aquarium.

Glowlight Rasbora Health Problems

Fortunately, Glowlight Rasboras have relatively few health problems, but if you do not take proper care of them, they can still become ill. Poor water quality, poor nutrition, overfeeding, lack of oxygen, and overcrowding are among the many possible causes of illness in Glowlight Rasboras.

Ich, or white spot disease, is the most common disease among them, which can be treated with aquarium salt, raised temperature, and medication. When you get your fish, pay particular attention to their behavior and watch for signs of illness, such as lethargy, loss of appetite, breathing problems, or fin rot.

When you notice any issues, act quickly to isolate the affected fish, improve the water quality, and seek veterinarian assistance if necessary. By providing a healthy and clean environment, a balanced diet, and suitable conditions, you can help prevent disease and keep your Glowlight Rasboras happy for years to come.

Glowlight Rasbora Tank Mates

When considering what fish to pair with your Glowlight Rasboras, it’s vital to select species that can adapt to the same environment. Ideally, tank mates should be peaceful, active, and not aggressive towards other fish. Some recommended fish species include Harlequin Rasboras, Cories, and Ottos.

As Glowlight Rasboras are relatively small fish, it’s essential not to pair them with larger or more aggressive fish, which can prey on or bully them. Avoid angelfish, cichlids, and large barbs, as they can harm your Glowlight Rasboras. It is also best to avoid fish that prefer different water parameters, as this can lead to stress, illness, and death for your Glowlight Rasboras.

Glowlight Rasbora Breeding

Breeding Glowlight Rasboras is relatively easy, but it requires some preparations, such as providing the right tank condition and adequate feeding.

Breeding can occur spontaneously in a well-maintained aquarium, or spawning can be triggered by simulating their natural habitat conditions, such as lowering the water level, reducing the temperature, and using a spawning mop.

A pregnant female can lay about 50 eggs, which will hatch within 24-36 hours. The eggs will remain attached to the spawning mop, and it is advisable to remove the parents once spawning occurs to prevent them from eating the eggs and fry. The fry should be fed small live foods such as baby brine shrimp, crushed flakes, or powdered foods until they mature enough to consume other types of foods.


Taking care of glowlight rasboras can be an exciting and fulfilling experience for beginners. With the right tank setup, water parameters, and feeding habits, these fish can thrive and display their beautiful colors. Remember to regularly check up on their health, and provide a peaceful environment for them to live in. We hope this guide has been helpful to you! Don’t hesitate to leave a comment below if you have any questions or experiences to share.

Updated: June 5, 2023

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