Emerald Eye Rasbora

Brevibora dorsiocellata

Emerald Eye Rasbora is a peaceful middle-to-top swimmer. Keep in a school of at least 8.

PeacefulMiddle to top swimmerKeep in a school of at least 8Beginner – Intermediate

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Quick facts

Adult size: ≤ 0.9" (≤ 2.3 cm)
Aquarium size: 16 US gal (60 L) or larger / ≥ 17.7" (≥ 45 cm) minimum length
Care level: Beginner – Intermediate
Temperament: Peaceful
Swimming zone: Middle to top swimmer
Temperature: 68–77°F (20–25°C)
pH: 5–7.5
GH: 1–10 dGH
Diet: Carnivore
Lifespan: up to 6 years
Group behavior: Keep in a school of at least 8

Care requirements

Care level: Beginner – Intermediate.

Lifespan: up to 6 years.

Aquarium size and space needs

Minimum aquarium size: 16 US gal (60 L) or larger / ≥ 17.7" (≥ 45 cm) minimum length. Plan the layout and stocking within that limit.

Water parameters

Suitable water: temperature 20–25 °C, pH 5–7.5, GH 1–10 dGH.

Temperament and compatibility

Emerald Eye Rasbora is peaceful and suits calm community fish.

Swimming zone and behavior

This fish uses the middle to upper part of the aquarium, so leave enough open swimming space for movement and feeding.

Feeding

Use foods that suit a meatier diet and avoid combining it with fish small enough to be treated as food.

Offer small live/frozen invertebrates and finely crushed foods; ensure feeding access among similar-sized companions.

Before adding this fish

Plan for an aquarium of 16 US gal (60 L) or larger / ≥ 17.7" (≥ 45 cm) minimum length.
Make room for its social group.
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: Malaysia, Indonesia, Thailand.

Important notes

Possible confusion with similar-looking Brevibora species; confirm identification before transferring water or social assumptions.

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) African Banded Barb Barbus 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) Blacknose Butterfly Barb Enteromius candens Same family Similar care level Same temperament Intermediate ≤ 1.4" (≤ 3.5 cm) 63–75°F (17–24°C)

FAQ

How large does Emerald Eye Rasbora get?

Emerald Eye Rasbora reaches ≤ 0.9" (≤ 2.3 cm).

What aquarium size does Emerald Eye Rasbora need?

Use an aquarium of at least 16 US gal (60 L) or larger / ≥ 17.7" (≥ 45 cm) minimum length.

Is Emerald Eye Rasbora peaceful?

Yes. Emerald Eye 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 Emerald Eye Rasbora?

Keep it between 20 to 25 °C.

Should Emerald Eye Rasbora be kept alone or in a group?

Emerald Eye Rasbora: Keep in a school of at least 8.