Betta Rubra Pair – Rare Mouthbrooding Betta with Striking Color for Soft-Water Setups

Betta Rubra Pair: The Peaceful Jewel of the Wild Betta World

Native to the peat swamps and slow-flowing streams of northern Sumatra, Betta rubra is a dwarf, mouthbrooding wild-type betta prized for its brilliant red tones and subtle metallic blue accents. Its compact size, peaceful nature, and fascinating breeding behavior make it an ideal choice for nano aquariums and natural biotope enthusiasts.

This pair has been health-checked and hand-selected to ensure compatibility, making them perfect for aquarists looking to explore breeding or simply enjoy a unique wild species.

Species Profile:

• Scientific Name: Betta rubra

• Size: 1.5–2 inches (4–5 cm)

• Temperament: Peaceful and shy

• Origin: Northern Sumatra, Indonesia

• Care Level: Intermediate

• Breeding Method: Paternal mouthbrooder

Why Choose a Betta Rubra Pair?

• ✅ Captive-bred for health and adaptability

• ✅ Unique mouthbrooding behavior – no bubble nests

• ✅ Peaceful, great for nano and soft-water aquariums

• ✅ Bright red coloration under blackwater lighting

• ✅ Compact size – perfect for planted tanks and nano aquascapes

Ideal Aquarium Setup

• Minimum Tank Size: 5–10 gallons for a pair

• Water Parameters: pH 4.5–6.5; soft, tannin-rich water preferred

• Temperature: 74–80°F (23–27°C)

• Filtration: Gentle sponge filter or low-flow setup

• Lighting: Low lighting preferred, with floating plants to create shade

• Aquascaping Tips: Leaf litter, driftwood, and dense plants offer essential cover

• Tankmates: Peaceful, small species like rasboras or a species-only setup

Feeding Guide

Betta rubra are micro-predators and require a protein-rich diet. Offer a variety to keep them healthy and vibrant:

• Live foods: Daphnia, baby brine shrimp, microworms

• Frozen foods: Cyclops, bloodworms, mysis shrimp

• Pellets: High-quality micro-pellets or soft betta-specific granules

Feed once or twice daily in small, manageable portions to maintain excellent water quality.

Breeding Betta Rubra

This species is a paternal mouthbrooder—after spawning, the male carries the eggs in his mouth for about 10–14 days. Key breeding tips:

• Keep water parameters stable and soft

• Provide secluded spots and plenty of cover

• Offer live/frozen food to condition the pair

• Keep disturbances minimal during the mouthbrooding period

The fry can be raised in the same tank or moved to a rearing tank once released by the male.

📦 Shipping & Guarantee

We ship all fish via overnight express to ensure the safety and health of your fish.

✔️ Live Arrival Guarantee
✔️ Individually bagged and insulated packaging
✔️ Ships Monday–Wednesday to avoid weekend delays

🙋‍♂️ Frequently Asked Questions

Are these wild-caught or captive-bred?
These Betta rubra pairs are captive-bred in soft-water aquariums and are fully acclimated to home tank life.

Are they aggressive like Betta splendens?
No, Betta rubra are peaceful and shy—great for calm tanks and species-only environments.

Can I breed them easily?
Yes, under the right soft-water conditions with minimal stress and high-quality nutrition, they breed readily.

Do they jump like other bettas?
Yes, they are strong jumpers. A tight-fitting lid is essential.

Do they require live food only?
While they prefer live and frozen foods, they may accept soft, high-quality micro-pellets over time.

Can I keep them in a community tank?
Only with other very peaceful species that won’t outcompete them for food. A species-only tank is recommended for breeding.

🛒 Add Betta Rubra to Your Collection Today

Betta rubra is a hidden treasure in the world of aquarium fish—colorful, peaceful, and fascinating to observe. Whether you’re building a blackwater biotope or simply want a pair of rare, behavior-rich fish, this Betta rubra pair is a perfect fit. Limited availability – order now!