Betta kuehnei

Both sexes have rounded tails. Adult males show vivid blue or blue-green iridescence from the snout to the rear gill-cover edge, including the throat.

Both sexes have rounded tails. Adult males show vivid blue or blue-green iridescence from the snout to the rear gill-cover edge, including the throat. There is no distinct transverse chin marking.

Adult length

Up to 6 cm (standard length, without the tail fin)

Water temperature

21–25 °C

pH

6–7.5

Hardness

0–5 dGH

Natural habitat

Inhabits clear, shaded forest creeks, using shallow areas among aquatic plants and leaf litter.

Relatively cool temperatures are advised. Provide shade and gentle-flow areas; do not assume all bettas need high temperatures.