Wapoga rainbowfish
Melanotaenia rubrivittata
Also known as Red-laced rainbowfish, Red laser rainbow
FreshwaterFish
Care at a glance
- Temperature
- 75–84°F
- 24–29°C
- pH
- 6.5–7.8
- Adult size
- 2.2 in
- 5.6 cm
- Minimum tank
- 24 gal
- 90 L
- Temperament
- Peaceful
- Social behavior
- Schooling
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- Egg scatterer · Medium
- Rarity
- Common
- Family
- Melanotaeniidae
- Origin
- Wapoga River system, Papua, Indonesia
Overview
The Wapoga rainbowfish is a dwarf rainbowfish that fits tanks the big species would overwhelm. It is a peaceful schooling fish for someone with a little experience.
Did you know
The Wapoga rainbowfish looks much like the well-known dwarf neon rainbowfish, Melanotaenia praecox, but is laced with red instead of neon blue. That is why the trade sells it as the Wapoga red laser rainbowfish.
Caring for the Wapoga rainbowfish
Keep Wapoga rainbowfish in a lively school of ten or more, where the males flash and spar. A group swims happily in 24 gal (90 L) or more. Give them a planted tank with driftwood, fine-leaved plants, some moss and open swimming lanes. Bright light brings out their red.
Keep the water at 75 to 84°F (24 to 29°C) and a pH of 6.5 to 7.8. Soft to moderately hard water around neutral suits them. Feed fine foods such as crushed flake and small granules. Frozen or live daphnia, cyclops and baby brine shrimp also bring out the red.
Wapoga rainbowfish are peaceful and belong with other small, calm community fish. They breed readily among fine-leaved plants and spawning mops, scattering adhesive eggs on them. Breeding them is of medium difficulty overall.
Good to know
Melanotaenia rubrivittata belongs to the rainbowfish family Melanotaeniidae. Unmack, Allen and Hadiaty described it in 2015. Its name means red-striped, for the crimson lacing along its flanks.
In the wild
The Wapoga rainbowfish comes from the Wapoga River system in Papua, Indonesia. It lives in the small forest tributaries of that river in northern Papua.
Weekly picks
Tank mates
The Wapoga rainbowfish is a peaceful, schooling species that keeps to the middle. These picks share a community profile with it, are safe together in both directions, and overlap on water type, temperature and pH.

Flathead loach
Nemacheilus platiceps
Freshwater2.9 in (7.3 cm) · 24 gal (90 L)72–81°F (22–27°C)Siamese flying barb
Laubuka siamensis
Freshwater2.6 in (6.5 cm) · 24 gal (90 L)72–81°F (22–27°C)
Cameroon barb
Enteromius camptacanthus
Freshwater3.9 in (10 cm) · 24 gal (90 L)72–81°F (22–27°C)
Vermiculated squeaker
Synodontis schoutedeni
Freshwater5.9 in (15 cm) · 24 gal (90 L)72–81°F (22–27°C)
Blue-eyed livebearer
Priapella intermedia
Freshwater2.8 in (7 cm) · 24 gal (90 L)72–82°F (22–28°C)
Six-banded barb
Desmopuntius hexazona
Freshwater2.4 in (6 cm) · 24 gal (90 L)73–82°F (23–28°C)
Common questions
What size tank does a Wapoga rainbowfish need?
A Wapoga rainbowfish needs at least 24 gal (90 L). It spends most of its time in the middle.
What temperature and pH does a Wapoga rainbowfish need?
A Wapoga rainbowfish is comfortable at 75–84°F (24–29°C) with a pH of 6.5–7.8.
What does a Wapoga rainbowfish eat?
A Wapoga rainbowfish eats fine foods such as crushed flake and small granules. Frozen or live daphnia, cyclops and baby brine shrimp help bring out its red.
How big does a Wapoga rainbowfish get?
An adult Wapoga rainbowfish reaches about 2.2 in (5.6 cm).
Does a Wapoga rainbowfish need a group?
Yes. A Wapoga rainbowfish is a schooling species and should be kept in a group, not singly.
How does a Wapoga rainbowfish breed?
Wapoga rainbowfish breed readily, scattering adhesive eggs on fine-leaved plants or spawning mops. Breeding them is of medium difficulty overall.
Related species
2.2 in (5.5 cm)20 gal (75 L)75–86°F (24–30°C)Sahul rainbowfish
Melanotaenia sahulensis
2.2 in (5.5 cm) · 20 gal (75 L)
2.4 in (6 cm)20 gal (75 L)73–84°F (23–29°C)Pygmy rainbowfish
Melanotaenia pygmaea
2.4 in (6 cm) · 20 gal (75 L)
2.4 in (6.2 cm)29 gal (110 L)77–86°F (25–30°C)Lake Furnusu rainbowfish
Melanotaenia mairasi
2.4 in (6.2 cm) · 29 gal (110 L)
2.8 in (7 cm)20 gal (75 L)72–82°F (22–28°C)Dwarf rainbowfish
Melanotaenia maccullochi
2.8 in (7 cm) · 20 gal (75 L)
2.8 in (7 cm)29 gal (110 L)77–86°F (25–30°C)Kamaka rainbowfish
Melanotaenia kamaka
2.8 in (7 cm) · 29 gal (110 L)
3 in (7.7 cm)29 gal (110 L)77–86°F (25–30°C)Batanta rainbowfish
Melanotaenia synergos
3 in (7.7 cm) · 29 gal (110 L)
