Glowlight Danio
Danio choprae
A brilliantly coloured, active schooling fish from Myanmar — peaceful, hardy and one of the most striking small danios for a planted community aquarium.
Difficulty
Beginner
Min tank size
60 L / 15 gal
Temperament
Peaceful, active
Diet type
Omnivore
Adult size
4–5 cm / 1.5–2 in
Lifespan
3–5 years
Water type
Freshwater
Glowlight Danio at a glance
| Scientific name | Danio choprae Hora, 1928 |
|---|---|
| Family | Danionidae (danios) |
| Origin | Myanmar (Burma) — upper Irrawaddy River drainage |
| Adult size | 4–5 cm (1.5–2 in) |
| Tank size (min) | 60 L / 15 gal — 75 L / 20 gal long recommended |
| Temperature | 20–26 °C (68–79 °F) |
| pH range | 6.0–7.5 |
| Water hardness | 2–12 dGH |
| Diet | Omnivore — flakes, micro-pellets, live and frozen foods |
| Temperament | Peaceful, active shoaling fish |
| Lifespan | 3–5 years |
| Care level | Beginner |
Overview
The Glowlight Danio (Danio choprae) is a small, colourful freshwater fish native to Myanmar. It is best known for its striking combination of blue-green body markings, orange fins and distinctive horizontal patterning. Despite its brilliant appearance, the species remains hardy and adaptable, making it an excellent choice for planted community aquariums.
Glowlight Danios are active shoaling fish that spend much of their time swimming through the middle and upper levels of the aquarium. They are peaceful toward compatible tank mates but should always be kept in a group. A school of at least six works, although eight to twelve fish produces more natural behaviour and creates a far more impressive display.
Their combination of manageable adult size, peaceful temperament, colourful appearance and relatively simple care requirements makes Danio choprae one of the most attractive danio species for beginners and experienced aquarists alike.
Glowlight Danio size & lifespan
How big do Glowlight Danios get?
Adult Glowlight Danios typically reach around 4–5 cm (1.5–2 inches) in length. Their bodies are slim and streamlined, built for active swimming in open water. Females are usually slightly fuller-bodied, especially when carrying eggs, while mature males often display more intense coloration.
How long do Glowlight Danios live?
Glowlight Danios generally live around 3–5 years in a well-maintained aquarium. Their lifespan depends heavily on stable water quality, proper nutrition, adequate swimming space and the reduced stress that comes from living in a proper school rather than alone or in a very small group.
Natural habitat & origin
Danio choprae is native to Myanmar (formerly Burma), particularly within the upper Irrawaddy River drainage. Wild populations occur in clear streams and smaller flowing waters, where the fish encounter shallow areas, moderate currents and plenty of dissolved oxygen.
Their natural habitat helps explain their behaviour in the aquarium. Glowlight Danios appreciate clean water, gentle to moderate current and plenty of open swimming space. Plants, driftwood and other cover provide security, while an open central area allows the school to display its natural active swimming behaviour.
Most Glowlight Danios available in the aquarium trade today are captive-bred. Captive-bred fish are generally adaptable to normal aquarium conditions, although stable water quality remains more important than chasing an exact reproduction of wild habitat chemistry.
Glowlight Danio tank size & requirements
A 15-gallon (60 L) aquarium is a practical minimum for a small school of Glowlight Danios, but a longer 20-gallon (75 L) aquarium is strongly recommended. These fish are active horizontal swimmers, so tank length is more valuable than extra height.
How many Glowlight Danios should be kept together?
Keep a minimum of six, but eight to twelve fish is a better school size. Larger groups encourage more confident behaviour, reduce stress and distribute the natural chasing that occurs among active shoaling fish.
| 10 gal (38 L) | Not ideal — the swimming space is limited for an active school. A larger, longer aquarium is recommended. |
|---|---|
| 15 gal (60 L) | Minimum practical size for a school of 6–8 Glowlight Danios in a properly filtered aquarium. |
| 20 gal long (75 L) | Ideal for 8–12 Glowlight Danios, with excellent horizontal swimming space and stable water conditions. |
| 29 gal (110 L) | A larger school of 12–15 Glowlight Danios or a community setup with compatible peaceful species. |
| 55 gal (208 L) | Suitable for a large, impressive school combined with peaceful midwater and bottom-dwelling fish. |
Water parameters
| Temperature | 20–26 °C (68–79 °F) |
|---|---|
| pH | 6.0–7.5 |
| Hardness (GH) | 2–12 dGH |
| Filtration turnover | Moderate flow with clean, oxygen-rich water |
A planted aquarium with open swimming areas works especially well for Glowlight Danios. Use plants along the back and sides of the aquarium while leaving the front and centre open for swimming. Moderate filtration and good oxygenation are beneficial, but avoid an extremely violent current that constantly pushes the fish around the tank.
Fine gravel or sand both work well as substrate. Driftwood, smooth stones and aquatic plants can help create a natural appearance. Because danios can jump when startled, a secure aquarium lid is recommended.
Not sure how many litres your tank actually holds? Check it with the aquarium volume calculator.
What do Glowlight Danios eat? Diet & feeding
Glowlight Danios are omnivores and readily accept a wide range of aquarium foods. A high-quality small flake, crushed pellet or micro-pellet should form the foundation of their diet. Because they have relatively small mouths, food particles should be appropriately sized.
Supplement the staple diet with live or frozen foods such as daphnia, brine shrimp, mosquito larvae and small bloodworms. These protein-rich foods can improve coloration, support conditioning and encourage natural feeding behaviour.
Feed small portions once or twice daily, providing only what the school can consume within a few minutes. Glowlight Danios are enthusiastic feeders and often spend much of their time searching the upper and middle levels of the aquarium for food.
Glowlight Danio tank mates & compatibility
Glowlight Danios are peaceful and work well in community aquariums when paired with species that share similar water requirements. Their active swimming style means they are best kept with fish that are not easily intimidated by constant movement.
Always establish the Glowlight Danio school first. Keeping enough individuals together directs most social interaction toward the group itself and helps the fish feel secure.
Good Glowlight Danio tank mates
- Other peaceful danio species with similar water requirements
- Harlequin rasboras and other peaceful rasboras
- Small peaceful tetras where temperature requirements overlap
- Corydoras catfish suited to similar water conditions
- Kuhli loaches in mature, appropriately sized aquariums
- Otocinclus catfish in established planted tanks
- Small peaceful barbs that do not nip fins
- Other active, peaceful community fish of similar size
Avoid
- Large predatory fish that may eat Glowlight Danios
- Aggressive cichlids and territorial fish
- Highly aggressive or fin-nipping species
- Very slow fish that may be stressed by constant activity
- Fish requiring significantly harder or hotter water
How to breed Glowlight Danios
Glowlight Danios are egg-scattering fish and can be bred in a dedicated aquarium under suitable conditions. Mature females are generally fuller-bodied, particularly when carrying eggs, while males are often slimmer and may show stronger coloration.
For the best chance of success, condition the breeding fish with high-quality foods including live or frozen daphnia and brine shrimp. A separate breeding tank with fine-leaved plants, spawning mops or a protective mesh over the bottom can help prevent the adults from eating the eggs.
Spawning often occurs during the early morning. Once eggs have been laid, remove the adults because they may consume the eggs. Maintain clean, stable water and gentle aeration. After hatching, fry require very small foods such as infusoria or commercially prepared fry food before gradually moving to newly hatched brine shrimp and microworms as they grow.
Naming & buyer’s notes
The Glowlight Danio has a common name that can easily cause confusion with another popular aquarium fish. Always check the scientific name before buying if you are specifically looking for this species.
Glowlight Danio vs Glowlight Tetra
These are completely different species. The Glowlight Danio is Danio choprae, a cyprinid from Myanmar, while the Glowlight Tetra is Hemigrammus erythrozonus, a South American characin. Similar common names do not mean similar origins or taxonomy.
Check the scientific name
Aquarium common names can vary between shops, countries and online sellers. When purchasing a Glowlight Danio, look for the scientific name Danio choprae to confirm the identification.
Glowlight Danio FAQ
- How big do Glowlight Danios get?
- Adult Glowlight Danios usually reach around 4–5 cm (1.5–2 inches) in length. They have a slim, streamlined body and remain relatively small, making them suitable for medium-sized planted community aquariums.
- How long do Glowlight Danios live?
- Glowlight Danios typically live around 3–5 years in a well-maintained home aquarium. Stable water conditions, a varied diet, proper schooling and enough swimming space can help them reach the upper end of their expected lifespan.
- How many Glowlight Danios should be kept together?
- Keep at least six Glowlight Danios together, but a group of eight to twelve is better. They are naturally shoaling fish and become more confident, active and visually impressive when maintained in a proper group.
- What size tank do Glowlight Danios need?
- A 15-gallon (60 L) aquarium is a practical minimum for a small school, but a 20-gallon long (75 L) tank is recommended. Glowlight Danios are active horizontal swimmers and benefit more from tank length than extra height.
- Are Glowlight Danios peaceful?
- Yes. Glowlight Danios are generally peaceful community fish. They are energetic and may chase one another as part of normal shoaling behaviour, but they are not usually aggressive toward compatible tank mates.
- What do Glowlight Danios eat?
- Glowlight Danios are omnivores and readily accept quality flakes, crushed pellets and micro-pellets. Their diet should also include occasional live or frozen foods such as daphnia, brine shrimp, mosquito larvae and small bloodworms.
- Do Glowlight Danios need a heater?
- In most tropical homes, a heater is recommended to maintain a stable temperature between approximately 20–26 °C (68–79 °F). They can tolerate slightly cooler conditions, but sudden temperature fluctuations should be avoided.
- Can Glowlight Danios live with shrimp?
- Adult shrimp may coexist with Glowlight Danios in a densely planted aquarium, but tiny shrimp shrimplets can be eaten. Provide moss, dense plants and hiding places if breeding shrimp are part of the aquarium setup.
- Are Glowlight Danios good for beginners?
- Yes. Glowlight Danios are hardy, peaceful and adaptable when kept in a proper school and adequately sized aquarium. Their main requirements are clean water, stable conditions, open swimming space and compatible tank mates.
- What is the difference between a Glowlight Danio and a Glowlight Tetra?
- They are completely different fish. The Glowlight Danio is Danio choprae, a cyprinid native to Myanmar, while the Glowlight Tetra is Hemigrammus erythrozonus, a characin from South America. Despite similar common names, they belong to different fish families and come from different continents.