Kamaka rainbowfish
Melanotaenia kamaka
Also known as Lake Kamaka rainbowfish
FreshwaterFish
Care at a glance
- Temperature
- 77–86°F
- 25–30°C
- pH
- 6.8–8.0
- Adult size
- 2.8 in
- 7 cm
- Minimum tank
- 29 gal
- 110 L
- Temperament
- Peaceful
- Social behavior
- Schooling
- Swim level
- Middle
- Difficulty
- Easy
- Breeding
- Egg depositor · Medium
- Rarity
- Rare
- Family
- Melanotaeniidae
- Origin
- Lake Kamaka, Triton Lakes, West Papua, Indonesia
Overview
The Kamaka rainbowfish is a mid-sized, peaceful schooler that fits tanks the big species outgrow. It is a good beginner's rainbowfish.
Did you know
The Kamaka rainbowfish's entire natural range is one small, remote lake. Most of the fish alive today, though, were bred in home aquariums and have never seen it.
Caring for the Kamaka rainbowfish
A group of six or more Kamaka rainbowfish is comfortable in 29 gal (110 L). Give them a soft substrate, some plants and open water to swim through. A settled group rewards you with constant midwater motion and dawn color.
Keep them warm, at 77 to 86°F (25 to 30°C), in neutral to alkaline water with a pH of 6.8 to 8.0. Feed the standard rainbowfish mix of flake and small granules, with frozen daphnia, brine shrimp and bloodworm.
Kamaka rainbowfish are gentle and undemanding, and good with other calm community fish of a similar size. They are moderately hard to breed, laying adhesive eggs on plants or mops across several days.
Good to know
Melanotaenia kamaka was described by Allen and Renyaan in 1996, one of three rainbowfishes from the Triton Lakes. It belongs to the family Melanotaeniidae and is compact for its genus. Displaying males show steel-blue flanks and amber fins. It also goes by Lake Kamaka rainbowfish.
In the wild
The Kamaka rainbowfish is found only in Lake Kamaka, one of the remote Triton Lakes near the coast of West Papua. It is a clear lake with a muddy bottom and patchy plants, ringed by forested limestone hills.
Weekly picks
Tank mates
The Kamaka 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.

Blue medusa pleco
Ancistrus macrophthalmus
Freshwater3.5 in (9 cm) · 29 gal (110 L)77–84°F (25–29°C)
Redfin halfbeak
Nomorhamphus ebrardtii
Freshwater3.5 in (9 cm) · 29 gal (110 L)75–81°F (24–27°C)
Heiko's tetra
Moenkhausia heikoi
Freshwater3.4 in (8.7 cm) · 29 gal (110 L)75–84°F (24–29°C)
Schultz's stone loach
Schistura schultzi
Freshwater4.3 in (11 cm) · 29 gal (110 L)72–81°F (22–27°C)
Striped panchax
Aplocheilus lineatus
Freshwater4.3 in (11 cm) · 30 gal (115 L)72–77°F (22–25°C)
Costae tetra
Moenkhausia costae
Freshwater2.8 in (7 cm) · 29 gal (110 L)72–82°F (22–28°C)
Common questions
What size tank does a Kamaka rainbowfish need?
A Kamaka rainbowfish needs at least 29 gal (110 L). It spends most of its time in the middle.
What temperature and pH does a Kamaka rainbowfish need?
A Kamaka rainbowfish is comfortable at 77–86°F (25–30°C) with a pH of 6.8–8.0.
What does a Kamaka rainbowfish eat?
A Kamaka rainbowfish eats the standard rainbowfish mix of flake and small granules. Add frozen daphnia, brine shrimp and bloodworm.
How big does a Kamaka rainbowfish get?
An adult Kamaka rainbowfish reaches about 2.8 in (7 cm).
Does a Kamaka rainbowfish need a group?
Yes. A Kamaka rainbowfish is a schooling species and should be kept in a group, not singly.
How does a Kamaka rainbowfish breed?
Kamaka rainbowfish lay adhesive eggs on plants or mops across several days. Breeding them is of medium difficulty.
Related species
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)
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)
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)
3.1 in (8 cm)29 gal (110 L)72–79°F (22–26°C)Lake Kurumoi rainbowfish
Melanotaenia parva
3.1 in (8 cm) · 29 gal (110 L)
3.1 in (8 cm)20 gal (76 L)73–82°F (23–28°C)Neon rainbowfish
Melanotaenia praecox
3.1 in (8 cm) · 20 gal (76 L)
3.1 in (8 cm)29 gal (110 L)75–84°F (24–29°C)Ogilby's rainbowfish
Melanotaenia ogilbyi
3.1 in (8 cm) · 29 gal (110 L)
