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Betta splendens

Betta spl. male Benjarong red - Betta Fish for Sale UK

Moderate Care
Aggressive
£51.99Sold Out

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Live arrival guaranteed. If they don’t arrive healthy, email us a short unboxing video the same day for a replacement or refund. Packed in oxygenated bags with insulation and heat packs when needed.
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A striking red ornamental male betta with flowing fins and bold personality, ideal for a warm, planted species tank. Moderate care, aggressive. 24-30C, pH 6-7.5.

Care at a Glance

Scientific Name
Betta splendens
Max Adult Size
up to 6.5 cm
Lifespan
3 years
Care Level
Moderate
Temperament
Aggressive
Temperature
24–30°C
pH Range
6–7.5
Hardness
1–15 dGH
Minimum Tank
40L
Diet
Carnivore

Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller. Product-photo provenance and any image-specific limitations are stated on the listing.

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Blue and red male Betta splendens swimming side-on in an aquarium
Full Care Guide

Betta Fish Care Guide: Siamese Fighting Fish

For one typical domestic Betta splendens, start with at least 20 litres, a mature filter, thermostatic heater, separate thermometer, gentle flow, a secure lid with surface access, and plants or refuges. Keep one male per aquarium.

13 min readRead guide

Water Parameters

Maintain these water conditions for optimal health and vibrant colors

Temperature
24–30°C
24°CIdeal30°C
pH Level
6–7.5
6Ideal7.5
Water Hardness
1–15 dGH
1 dGHIdeal15 dGH

Red from the Benjarong line is a different proposition to ordinary red bettas: this is an ornamental male of around 6.5 cm carrying saturated red colouring with the line's distinctive finish, and his name — borrowed from Thailand's famous five-coloured porcelain tradition — signals the breeding heritage behind him. He flares readily, displays constantly, and holds his red under all lighting.

Build him a fighter's home. Aggressive by record and moderate in care, his approved companions amount to snails, with peaceful shrimp or very carefully selected tank mates conceivable only in larger, heavily planted setups. Excluded are other male bettas, fin-nipping fish, aggressive or highly territorial species, brightly coloured long-finned fish that bait his displays, and small fish he may mistake for prey. The recorded minimum is a substantial 40 litres — give it to him and the activity level repays the space. Water: 24–30 °C, pH 6.0–7.5, hardness 1–15 dGH. He is a carnivore working the top of the tank, with territorial behaviour rising toward breeding condition, as his record notes plainly.

Activity is his defining trait once settled, and the 40-litre recorded minimum is what makes it visible: short of space he paces, given space he patrols, and the difference shows in both behaviour and colour. Feed his carnivore ration with rotation — line-bred reds hold saturation best on varied protein — and keep the heater anywhere stable inside 24–30 °C. Water chemistry is standard betta fare at pH 6.0–7.5 and 1–15 dGH with weekly changes. His record's warning about small fish being mistaken for prey is specific and worth heeding: nothing under his own size class enters his tank safely. Snails, a planted aquascape and an owner who enjoys a busy fish complete the picture.

Benjarong red male essentials

  • Adult length ~6.5 cm
  • About 3 years expected
  • Moderate care level
  • Aggressive — house alone
  • 24–30 °C heated water
  • pH 6.0–7.5
  • Hardness 1–15 dGH
  • 40 litres minimum
  • Carnivore feeding
  • Upper-region swimmer

Ordering this male

Reds from named lines like Benjarong hold their colour with far more consistency than unnamed commercial reds — that consistency is what you are buying. Despatched across the UK with a licensed live-animal courier and our live arrival guarantee.

Customer Reviews

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What customers say about ordering from us

  • 4 out of 5Verified buyer

    I have a small group of long finned mountain minnows. So was delighted to be able to order ten of this variety to increase the genetics in my tank . The ones I recieved are healthy but it’s to early to give a verdict on wether they are of a long finned type since they are small currently.

    Gordon Walker · 23 Sept 2026

  • 5 out of 5Verified buyer

    100% success travel and "installation". Pleased with quality of purchase. The Siamese fighter a bit "shy" so have not yet seen him at his best yet but looking good. Happy customer. GG

    George E Garratt · 21 Sept 2026

Reviews of our shop, collected by Judge.me, an independent third-party review collector. Newest first.