Glowlight Rasbora

Trigonostigma hengeli

Glowlight Rasbora is a peaceful all-zone swimmer. Keep in a school of at least 8.

PeacefulAll-zone swimmerKeep in a school of at least 8Beginner – Intermediate

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Explore compatibility, care or problems using this guide and your aquarium’s conditions.

Quick facts

Adult size: ≤ 1.2" (≤ 3 cm)
Aquarium size: 26 US gal (100 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
Care level: Beginner – Intermediate
Temperament: Peaceful
Swimming zone: All-zone swimmer
Temperature: 73–82°F (23–28°C)
pH: 5–7.5
GH: 1–10 dGH
Diet: Carnivore
Lifespan: up to 5 years
Group behavior: Keep in a school of at least 8

Care requirements

Care level: Beginner – Intermediate.

Lifespan: up to 5 years.

Aquarium size and space needs

Minimum aquarium size: 26 US gal (100 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length. Plan the layout and stocking within that limit.

Water parameters

Suitable water: temperature 23–28 °C, pH 5–7.5, GH 1–10 dGH.

Temperament and compatibility

Glowlight Rasbora is peaceful and suits calm community fish.

Swimming zone and behavior

This fish uses multiple areas of the aquarium, so leave enough open swimming space for movement and feeding.

Before adding this fish

Plan for an aquarium of 26 US gal (100 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length.
Avoid aggressive or highly competitive fish.
Keep in a school of at least 8.
Offer a varied diet suited to this species’ documented feeding habits.

Natural habitat and origin

Origin: Singapore Indonesia.

Natural habitat: Vegetated forest streams with leaf litter and tannin-stained water.

Similar fish profiles

Use these profiles to compare fish with similar care level, size, temperature range, or swimming behavior.

Black Barred Danio Danio absconditus Same family Similar care level Same temperament Beginner – Intermediate ≤ 2" (≤ 5.2 cm) 63–79°F (17–26°C) Armoured Stickleback Indostomus paradoxus Similar care level Same temperament Bottom dweller Beginner – Intermediate ≤ 1.2" (≤ 3 cm) 72–81°F (22–27°C) African Banded Barb Enteromius fasciolatus Same family Similar care level Same temperament Beginner – Intermediate ≤ 2.4" (≤ 6 cm) 68–79°F (20–26°C) Bandula Barb Pethia bandula Same family Similar care level Same temperament Beginner – Intermediate ≤ 1.6" (≤ 4.1 cm) 72–79°F (22–26°C) Black Ink Barb Barbodes bunau Same family Similar care level Same temperament Beginner – Intermediate ≤ 2.4" (≤ 6 cm) 75–82°F (24–28°C) Black Ruby Barb Pethia nigrofasciata Same family Similar care level Same temperament Beginner ≤ 2.2" (≤ 5.5 cm) 68–81°F (20–27°C)

FAQ

How large does Glowlight Rasbora get?

Glowlight Rasbora reaches ≤ 1.2" (≤ 3 cm).

What aquarium size does Glowlight Rasbora need?

Use an aquarium of at least 26 US gal (100 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length.

Is Glowlight Rasbora peaceful?

Yes. Glowlight Rasbora is recorded as peaceful and is best planned with calm community fish that do not harass it or dominate the feeding area.

What temperature is suitable for Glowlight Rasbora?

Keep it between 23 to 28 °C.

Should Glowlight Rasbora be kept alone or in a group?

Glowlight Rasbora: Keep in a school of at least 8.