Aquarist Species:  Melanotaenia Sp 'Kali Tawa'

Aquarist: AsianFishBiologist

Species Profile: Melanotaenia Sp 'Kali Tawa'

Species Photo by: Kyle Carlson

Description:   With a total length of normally 7 cm (several years old specimens are said to be able to reach 10 cm), this species is one of the smaller representatives of the genus. The combination of snow-white dorsal and anal fins and red caudal fin, plus an orange front ridge and blue tones on the flank, makes them highly attractive in terms of color. originated from Papua New Guinea, specifically from the Tawa stream near the Village of Lobo. This fish was first introduced to the aquarium hobby in 2019 and is known for its striking coloration and peaceful temperament.

Category:   Rainbowfish

Global Region:   Oceania

Distribution:   Papua New Guinea

Aquarist Notes

Photo of aquarist's species:

Genetic Line:   F2 Second Generation

Year Acquired:   2026

Acquired from Dan’s fish in 2025 as subadults.

Spawning notes:

Species Spawned:   Yes

Spawning mop in 76-78 degree water (keep temps low to prevent skewed sex ratios)

Have Reared Fry?   Yes

Eggs hatch in 7-9 days. Turn temps up after eggs are laid. Keep eggs warm at 80 degrees for proper development.