
Betta spl. male crowntail white
24–30°C · pH 6–8 · 38L

Big ears halfmoon male betta, ~7 cm with fanned dumbo pectorals. Corydoras-compatible with care. 24–30°C, 38 L minimum.
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. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.
Betta spl. male halfmoon big ears
Big ears halfmoon male betta, ~7 cm with fanned dumbo pectorals. Corydoras-compatible with care. 24–30°C, 38 L minimum.
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. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.

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
Watch a big ear halfmoon swim and the pectorals steal the show: enlarged, rounded fins either side of the head — the dumbo trait — beating constantly beneath the main event of a full halfmoon tail. This male runs to about 7 cm, and the doubled spectacle of spread caudal plus fanning pectorals gives him a presence few single-trait bettas match.
Unusually for an aggressive-rated male, his compatibility record lists named community options: Corydoras catfish, Otocinclus, small peaceful rasboras, snails and some peaceful shrimp species — all with caution, all in suitably large tanks, and all chosen because they neither resemble bettas nor nip fins. The exclusions hold the line: other male bettas, fin-nippers, aggressive cichlids, large predators, brightly coloured or long-finned fish, and specifically guppies, whose flowing tails trigger him. Moderate care covers his needs: 38 litres minimum, 24–30 °C, pH 6–7.5, hardness 1–15 dGH, carnivore feeding, calm surface water in the top region he holds. Territorial behaviour intensifies toward breeding condition, so monitor any community closely in the first weeks.
A community around this male succeeds on selection discipline. His record's named companions — Corydoras, Otocinclus, small peaceful rasboras — share a logic: bottom and mid-water species, drab beside him, with no trailing fins to trigger his instincts. Stay inside that logic and the 38-litre tank works; deviate toward anything guppy-shaped and it will not. Feed him at the surface while the catfish work below, keep temperature steady in the 24–30 °C band, and hold pH 6–7.5 with weekly changes. The big-ear pectorals make him absurdly watchable in open water, which is one more reason the community format suits him: he displays more when there is gentle activity below his territory than he ever does alone.
A 38-litre planted aquarium with a Corydoras group below and this male above is one of the tidiest single-betta communities you can run — keep guppies and anything long-finned out of the plan. UK orders ship by licensed live-animal courier, live arrival guaranteed.

24–30°C · pH 6–8 · 38L

24–30°C · pH 6–7.5 · 20L

24–30°C · pH 6–8 · 20L

24–30°C · pH 6–7.5 · 20L

24–30°C · pH 6–7.5 · 38L

24–30°C · pH 6–7.5 · 20L

18–26°C · pH 6.5–8 · 30L

23–27°C · pH 7.4–8.4 · 500L

20–27°C · pH 6–7 · 54L

23–27°C · pH 7.4–8.4 · 150L

24–28°C · pH 6.5–7.8 · 300L

20–24°C · pH 7–8 · 45L

24–28°C · pH 6.5–7.5 · 2000L

24–28°C · pH 7.5–8.5 · 200L

24–28°C · pH 5.5–7 · 60L

18–25°C · pH 6–8 · 100L

24–28°C · pH 7–8 · 120L

18–28°C · pH 6.5–8 · 20L

24–27°C · pH 7.5–8.8 · 150L

22–26°C · pH 6–7.5 · 60L

24–28°C · pH 7.5–8.5 · 40L

24–28°C · pH 7.5–8.5 · 500L