Brunei Beauty Betta Care Guide
The Brunei Beauty Betta (Betta macrostoma) is one of the rarest and most sought-after betta species in the aquarium hobby. Popular among specialist UK aquarists, this stunning wild betta is admired for its vibrant red-orange coloration, peaceful temperament, and fascinating breeding behaviour.
In this guide, you'll learn everything you need to know about Brunei Beauty Betta care, including tank size, water conditions, compatibility, feeding, and typical UK prices - plus how to buy or sell them locally.

Quick facts about Brunei Beauty Bettas
The Brunei Beauty Betta is a wild mouthbrooding betta species native to Brunei and parts of Borneo. Unlike common Siamese fighting fish, they are generally calmer, more sensitive, and require specialised care.
They are considered a premium species due to their rarity and breeding difficulty.

Betta macrostoma

8-10 cm

Brunei and Borneo

60L (15gal) for a pair

4-8 years

Peaceful, territorial during breeding

24-28°C

Carnivore (live, frozen, high-quality protein foods)

5.5-7.0

£80-£300+ per pair
How Many Brunei Beauty Bettas Should You Keep?
Brunei Beauty Bettas are best kept as pairs or in carefully managed species-focused setups.
- A bonded pair is ideal
- Males can be territorial toward one another
- Provide multiple hiding places and visual barriers
Keeping multiple males together can lead to:
- Territorial aggression
- Stress and injury
- Competition for territory
They are much calmer than domestic fighting bettas but still require space and structure.
Ideal Tank Conditions for Brunei Beauty Bettas
Providing the right environment is essential for their health and breeding success.
- Tank Setup: Calm heavily planted aquarium or species tank
- Substrate: Sand or dark fine gravel
- Plants & Decor: Driftwood, caves, leaf litter, and dense planting
- Water Conditions: Soft, slightly acidic stable freshwater
- Filtration & Flow: Gentle filtration with minimal current
- Lighting: Dim to moderate lighting preferred
Stable water conditions are critical for this species.
Compatibility with Other Fish
Brunei Beauty Bettas are best kept in species-focused aquariums or with very peaceful tankmates.
- Good Tankmates: small peaceful rasboras or quiet bottom-dwellers in larger tanks
- Avoid: aggressive fish, fin-nippers, and highly active species
They are shy and easily stressed by boisterous tankmates.
Are Brunei Beauty Bettas Easy to Care For?
Brunei Beauty Bettas are moderately difficult to care for and best suited to experienced aquarists.
They require:
- Stable soft water
- Quiet surroundings
- High-quality feeding
- Careful tankmate selection
They are more sensitive than common domestic bettas.
Brunei Beauty Betta Price in the UK
In the UK, Brunei Beauty Bettas typically cost between £80-£300+ depending on age, quality, and breeding status.
Prices vary depending on:
- Wild-caught vs captive-bred origin
- Pairing and breeding potential
- Colour quality
- Availability
True healthy pairs are considered highly valuable.
Where to Buy Brunei Beauty Bettas in the UK
Brunei Beauty Bettas are usually available only through specialist breeders and rare fish importers.
Sourcing fish locally can:
- Reduce transport stress
- Allow you to assess condition and compatibility
- Offer access to established breeding pairs
TankMate UK helps connect fishkeepers who want to buy, sell, or rehome fish safely - without shipping.
Can You Sell Brunei Beauty Bettas?
Yes - Brunei Beauty Bettas are occasionally bred and sold by specialist hobbyists.
Selling locally is often the best option, as it:
- Minimises stress for the fish
- Avoids the risks of shipping
- Connects you with experienced keepers
TankMate UK allows you to list fish quickly and find local buyers.
Feeding Brunei Beauty Bettas
Brunei Beauty Bettas are carnivorous and require a protein-rich diet.
Key Tips
- Feed frozen or live foods such as bloodworms, brine shrimp, and blackworms
- Offer high-quality betta pellets occasionally
- Feed small portions 1-2 times daily
- Avoid overfeeding
A varied diet helps maintain colouration and breeding condition.
Common Problems with Brunei Beauty Bettas
Stress and poor health, often caused by:
- Poor water quality
- Excessive flow
- Aggressive tankmates
Loss of appetite, linked to:
- Stress during acclimation
- Incorrect water conditions
Breeding difficulties, caused by:
- Unstable conditions
- Incompatible pairs
Why Brunei Beauty Bettas Are So Popular
- Rare and highly sought-after species
- Brilliant red-orange colouration
- Fascinating mouthbrooding behaviour
- Calmer than domestic bettas
- Excellent for specialist aquarists
When kept correctly, Brunei Beauty Bettas become stunning centrepiece fish for dedicated species aquariums.
Frequently Asked Questions
They are generally peaceful but can be territorial during breeding.
Only with very peaceful fish in carefully planned setups.
They are rare, difficult to breed, and highly desirable among enthusiasts.
At least 60 litres for a pair, with dense cover and stable water conditions.
Looking to Buy or Sell Brunei Beauty Bettas Locally?
TankMate UK connects fishkeepers who want to buy, sell, or rehome fish safely within their local area.
Whether you're searching for rare wild bettas or looking to pass fish on to an experienced keeper, you can:
- Browse fish available near you
- List your own fish in minutes
- Avoid the risks of shipping
Explore local listings with TankMate UK and find the right fish for your aquarium.


