Moderate
Super Delta Female Betta (Betta splendens) - Random Mix
23–27°C · pH 6–7.8 · 20L
£10.99
A striking female Halfmoon Koi Betta with vivid marbled coloration and elegant fins, ideal for a warm, planted aquarium. Moderate care, semi-aggressive. 24-28C, pH 6.0-7.5.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Product-photo provenance and any image-specific limitations are stated on the listing.
Betta splendens
A striking female Halfmoon Koi Betta with vivid marbled coloration and elegant fins, ideal for a warm, planted aquarium. Moderate care, semi-aggressive. 24-28C, pH 6.0-7.5.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Product-photo provenance and any image-specific limitations are stated on the listing.
The betta fish is one of the most popular and most misunderstood freshwater species. This guide covers everything from proper tank size to the truth about tank mates.
Maintain these water conditions for optimal health and vibrant colors
Koi marbling never repeats itself, and that is the whole attraction of this Halfmoon Koi female: blocks of contrasting colour scattered koi-fashion across a 6.5 cm fish carrying the broad Halfmoon-type tail. The marble gene keeps working throughout her life, so the pattern she arrives with will drift and redistribute over the months — owning one is owning a slow-motion colour change.
She is rated moderate care and semi-aggressive, with a compatibility file that allows a little more than the strict fighters: snails are reliable, peaceful shrimp may be workable in heavily planted tanks though they can be hunted, and very carefully chosen peaceful bottom-dwellers can join her — but only in larger, well-structured tanks. Refuse other bettas, fin-nipping fish, aggressive or highly territorial species, large predators, and fast boisterous tank mates that stress her. Housing starts at 20 litres with water at 24–28 °C, pH 6.0–7.5 and hardness 1–15 dGH; she patrols the upper region and may turn territorial as breeding condition develops. Feed a carnivore diet and the colour blocks stay rich.
Marble-gene fish are bought twice: once for the pattern in the listing and again, gradually, for every pattern that follows. Support the show with stable basics — 20 litres minimum, 24–28 °C held firmly, carnivore feeding, water inside pH 6.0–7.5 and 1–15 dGH — because colour change is normal for the koi line but fading is not, and stable water is how you tell the difference. A monthly photo habit settles the question instantly. Her cautious community options follow the usual sequencing rule: established tank first, her last, larger volume than the minimum. Most koi females end up as cherished single specimens, their evolving blocks of colour doing the work a whole community usually does.
Because marbling is individual and ongoing, your female's pattern is hers alone and will keep evolving after arrival — no stock photo can promise otherwise, and we do not pretend it can. UK despatch by licensed live-animal courier with live arrival guaranteed.
23–27°C · pH 6–7.8 · 20L
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