Betta spl. male Halfmoon green - Betta Fish for Sale UK

Green halfmoons occupy a strange, lovely corner of the hobby: the colour shifts with every angle of light, sometimes emerald, sometimes nearly teal, always carried across the 180-degree sweep of the halfmoon tail. This male reaches around 6.5 cm, and because green is among the least common colours in commercial betta breeding, he tends to be the fish visitors ask about first.

His husbandry profile is standard for a show male: moderate care, aggressive temperament, solo housing as the default. The record permits small non-aggressive snails, peaceful shrimp in larger well-planted tanks with predation possible, and very peaceful bottom-dwellers only in bigger aquariums under careful monitoring. It excludes other male bettas, fin-nipping species such as tiger barbs, aggressive or highly territorial fish, large predators, and fast boisterous tank mates that stress or outcompete him. Give him 38 litres or more at 24–30 °C, pH 6.0–7.5 and hardness 1–15 dGH, feed carnivore fare, and keep the upper water — his territory — calm and obstacle-light. Breeding condition raises the temperature of his temper, so to speak; plan introductions around it.

Lighting decisions matter more for green bettas than for any other colour we stock. His iridescence runs emerald to teal depending on angle, so try the tank perpendicular to a window or fit a movable lamp before settling the aquascape — ten minutes of experimentation repays three years of viewing. Underneath the optics, his needs are standard show-male fare: 38 litres minimum, gentle flow for the halfmoon spread, carnivore feeding, heater fixed inside 24–30 °C, water inside pH 6.0–7.5 and 1–15 dGH. The cautious bottom-dweller company his record permits in larger tanks works best added before him, never after. Greens are bought rarely and kept long; set his tank up accordingly.

Green halfmoon: what he needs

• Around 6.5 cm long
• Roughly 3 years of life
• Moderate care level
• Aggressive disposition
• Water at 24–30 °C
• pH 6.0–7.5
• Hardness 1–15 dGH
• 38-litre minimum tank
• Carnivorous menu
• Top-region territory

Securing a green

True greens sell on sight in shops, which is why buying online when one is listed in stock is the dependable route. Despatch UK-wide by licensed live-animal courier, with our live arrival guarantee included.