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Betta imbellis

Betta spl. male Wild Imbellis yellow tail - Betta Fish for Sale UK

Moderate Care
Semi-Aggressive
£54.99Sold 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.
£19.95 tracked delivery — half price (£9.98) from £100.00, free from £200.00. One delivery charge however many fish you add — everything travels together with a licensed live-animal courier.
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A beautifully colored wild betta with a calmer nature than many domestic strains, ideal for a peaceful, planted aquarium. Moderate care, semi-aggressive. 24-28C, pH 6-7.5.

Care at a Glance

Scientific Name
Betta imbellis
Max Adult Size
up to 6.5 cm
Lifespan
3 years
Care Level
Moderate
Temperament
Semi-aggressive
Temperature
24–28°C
pH Range
6–7.5
Hardness
1–10 dGH
Minimum Tank
20L
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
24–28°C
24°CIdeal28°C
pH Level
6–7.5
6Ideal7.5
Water Hardness
1–10 dGH
1 dGHIdeal10 dGH

Yellow is one of the scarcer accents among wild-type bettas, which makes this wild imbellis yellow tail male a quietly special fish. The tail carries the strain's namesake yellow tone over a wild imbellis frame, and his care record credits him with a calmer nature than many domestic strains — a genuine point of difference if you have found line-bred bettas too highly strung. He reaches roughly 6.5 cm, lives around three years, and stays close to the surface as a dedicated top-region dweller, which is exactly where you will do most of your watching and feeding.

Calmer does not mean communal. He remains semi-aggressive, must never share a tank with another male betta, and should not be housed alongside species that demand fast-flowing water. Small peaceful snails are the most dependable tankmates, and peaceful shrimp may coexist in larger, well-planted tanks — accepting that some shrimp predation is always possible. Fin-nippers, aggressive cichlids, large or boisterous fish, and very small fry or tiny shrimp are all recorded exclusions. Like related wild strains, he can become territorial around breeding, so leave him escape routes and visual barriers.

His ideal water is gently warm and soft: 24–28 °C, pH 6.0–7.5 and hardness between 1 and 10 dGH, with 20 litres as the recorded minimum footprint. The diet is carnivorous, and the moderate care rating means a keeper comfortable with routine water testing will find him very manageable indeed — the strain asks for consistency far more than it asks for complexity. Offer him meaty foods at the surface, keep the temperature inside the recorded band through winter, and he should hold his colour and condition well across his three-year span.

Wild imbellis yellow tail male — key parameters

  • Size at maturity: about 6.5 cm
  • Lifespan: around 3 years
  • Minimum volume: 20 litres
  • Water: 24–28 °C, pH 6.0–7.5
  • Hardness: 1–10 dGH
  • Diet: carnivore; region: top

Stocking advice

Give him a planted tank with gentle conditions and pick any companions strictly from the safe list above. For UK keepers who value natural form over mass-market flash, a wild yellow tail male is a distinctive choice — and he ships under 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.