Neon Blue Rasbora

Sundadanio axelrodi

Neon Blue Rasbora is a peaceful middle-to-top swimmer. Keep in a loose group of 20+.

PeacefulMiddle to top swimmerKeep in a loose group of 20+Intermediate

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Need help with Neon Blue Rasbora?

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

Quick facts

Adult size: ≤ 0.9" (≤ 2.3 cm)
Aquarium size: 11 US gal (40 L) or larger
Care level: Intermediate
Temperament: Peaceful
Swimming zone: Middle to top swimmer
Temperature: 73–79°F (23–26°C)
pH: 4–6.5
GH: 0–5 dGH
Diet: Omnivore
Lifespan: up to 3 years
Group behavior: Keep in a loose group of 20+

Care requirements

Care level: Intermediate.

Lifespan: up to 3 years.

Aquarium size and space needs

Minimum aquarium size: 11 US gal (40 L) or larger. Plan the layout and stocking within that limit.

Water parameters

Suitable water: temperature 23–26 °C, pH 4–6.5, GH 0–5 dGH.

Temperament and compatibility

Neon Blue 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.

Before adding this fish

Plan for an aquarium of 11 US gal (40 L) or larger.
Make room for its social group.
Avoid aggressive or highly competitive fish.
Keep in a loose group of 20+.
Offer a varied diet suited to this species’ documented feeding habits.

Natural habitat and origin

Origin: Indonesia.

Similar fish profiles

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

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) Blacknose Butterfly Barb Enteromius candens Same family Similar care level Same temperament Intermediate ≤ 1.4" (≤ 3.5 cm) 63–75°F (17–24°C) Arulius Barb Dawkinsia tambraparniei Same family Similar care level Same temperament Intermediate ≤ 5.1" (≤ 13 cm) 64–77°F (18–25°C) Bala Shark Balantiocheilos melanopterus Same family Similar care level Same temperament Beginner – Intermediate ≤ 13.8" (≤ 35 cm) 68–82°F (20–28°C)

FAQ

How large does Neon Blue Rasbora get?

Neon Blue Rasbora reaches ≤ 0.9" (≤ 2.3 cm).

What aquarium size does Neon Blue Rasbora need?

Use an aquarium of at least 11 US gal (40 L) or larger.

Is Neon Blue Rasbora peaceful?

Yes. Neon Blue 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 Neon Blue Rasbora?

Keep it between 23 to 26 °C.

Should Neon Blue Rasbora be kept alone or in a group?

Neon Blue Rasbora: Keep in a loose group of 20+.