Ruby Rasbora

Paedocypris progenetica

Ruby Rasbora is a peaceful middle swimmer. Keep in a school of at least 10.

PeacefulMiddle swimmerKeep in a school of at least 10Intermediate – Advanced

Save this fish or add it directly to one of your aquariums.

Need help with Ruby Rasbora?

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

Quick facts

Adult size: ≤ 0.4" (≤ 1 cm)
Care level: Intermediate – Advanced
Temperament: Peaceful
Swimming zone: Middle swimmer
Temperature: 79–88°F (26–31°C)
pH: 3–4
GH: 0–5 dGH
Diet: Omnivore
Lifespan: up to 1 years
Group behavior: Keep in a school of at least 10

Care requirements

Care level: Intermediate – Advanced.

Lifespan: up to 1 years.

Water parameters

Suitable water: temperature 26–31 °C, pH 3–4, GH 0–5 dGH.

Temperament and compatibility

Ruby Rasbora is peaceful and suits calm community fish.

Swimming zone and behavior

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

Feeding

As an omnivore, Ruby Rasbora should receive a varied diet rather than one repeated food type.

Before adding this fish

Make room for its social group.
Avoid aggressive or highly competitive fish.
Keep in a school of at least 10.
Offer a varied diet suited to this species’ documented feeding habits.

Natural habitat and origin

Origin: Indonesia.

Important notes

Extremely small paedomorphic adults from highly acidic peat swamps; avoid converting wild water extremes into captive ranges or assuming ordinary community compatibility.

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) Bala Shark Balantiocheilos melanopterus Same family Similar care level Same temperament Beginner – Intermediate ≤ 13.8" (≤ 35 cm) 68–82°F (20–28°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) Barred Danio Devario pathirana Same family Similar care level Same temperament Beginner – Intermediate ≤ 3.1" (≤ 8 cm) 73–79°F (23–26°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)

FAQ

How large does Ruby Rasbora get?

Ruby Rasbora reaches ≤ 0.4" (≤ 1 cm).

Is Ruby Rasbora peaceful?

Yes. Ruby 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 Ruby Rasbora?

Keep it between 26 to 31 °C.

Should Ruby Rasbora be kept alone or in a group?

Ruby Rasbora: Keep in a school of at least 10.