Melanotaenia fredericki

A pale violet body with blue reflective scales above the midlateral band and a yellow area below it.

A pale violet body with blue reflective scales above the midlateral band and a yellow area below it, more conspicuous in juveniles. Adult males are usually deeper-bodied and more strongly coloured.

Adult length

Up to 9 cm (standard length, without the tail fin)

Water temperature

24–28 °C

pH

6.5–7.5

Natural habitat

Native to inland waters of Indonesia; detailed wild habitat information is limited.