Lake Kutubu Rainbowfish (Melanotaenia Lacustris)
Click to enlarge

Unless otherwise stated, product might differ from image as image is representative of species and not of actual product

Freshwater Livestock/Other Tropical Fishes/Rainbowfish

Lake Kutubu Rainbowfish (Melanotaenia Lacustris)

PeacefulSchoolingCommunity TankPlanted TankTropicalBlue
SGD 43.00

Delivery Information

Delivery occurs once a month and may take 2 to 4 weeks. Certain areas may require additional charges, and a top-up via PayNow will be needed. This includes Central Business District, Offices, Airport, Hospitals, Tertiary campuses, PSA terminals, Cargo Complexes, cargo ports, shipyards, Government buildings, secured compounds, SAF campus, Marina Bay Sands, Robinson, Marina Square,Orchard, Bras Basah, Sentosa, Tuas, Jurong Island, etc. Our customer service representatives will reach out to you if necessary.

Product Variations

Quantity

Stock: 100

Product Details

Size

4cm - 6cm

Temperament

Peaceful

WYSIWYG

Representative Photo Only

Product Description

Melanotaenia lacustris (Lake Kutubu Rainbowfish)

Melanotaenia lacustris is one of the most iconic Rainbowfish species, celebrated for its breathtaking turquoise-blue coloration and elegant swimming behavior. Native to Lake Kutubu in Papua New Guinea, this species is highly prized by aquarists for its vibrant appearance and peaceful temperament.

As they mature, males develop intense metallic blue hues across the body, often accompanied by a deeper body profile and extended finnage. When kept in groups, their natural schooling behavior and shimmering colors create a spectacular display in planted and community aquariums.

Key Features:

- Stunning turquoise-blue metallic coloration
- Peaceful and active schooling fish
- Excellent centerpiece for Rainbowfish aquariums
- Ideal for planted and community tank setups
- Colors intensify with maturity and proper nutrition

Care Level: Easy
Temperament: Peaceful
Adult Size: Up to 10–12 cm
Diet: Omnivore – accepts quality flakes, pellets, frozen, and live foods
Water Temperature: 24–28°C
pH: 7.0–8.0

With its brilliant blue coloration, active personality, and graceful presence, Melanotaenia lacustris is a premium Rainbowfish that brings exceptional beauty and movement to any freshwater aquarium.

More From This Merchant

Rivier Aquatic

Rivier Aquatic

View Store →

Suitable Tank Mates for Lake Kutubu Rainbowfish (Melanotaenia Lacustris)

Boosemani rainbow XL 6-7cm

Boosemani rainbow XL 6-7cm

SGD 13.20
Guppy blak moscow

Guppy blak moscow

SGD 40.00
Black arrow tetra 2.5cm

Black arrow tetra 2.5cm

SGD 9.90
Red Neon Goby 4cm

Red Neon Goby 4cm

SGD 5.50
Wertheimeria Maculata (12-15cm)

Wertheimeria Maculata (12-15cm)

SGD 176.00
Colored Glazed Discus

Colored Glazed Discus

SGD 62.00
GUPPY HB RED ROSE TAIL 1 PAIR / 1MALE 1FEMALE

GUPPY HB RED ROSE TAIL 1 PAIR / 1MALE 1FEMALE

SGD 6.00
Guppy Albino Platinum Koi White Ear

Guppy Albino Platinum Koi White Ear

SGD 30.00

You May Also Like

Iriatherina Werneri
Iriatherina Werneri
SGD 2.00
Forktail Blue Eye Rainbowfish (Pseudomugil furcatus)
Forktail Blue Eye Rainbowfish ..
SGD 43.00
Forktail Rainbowfish (Pseudomugil Furcatus)
Forktail Rainbowfish (Pseudomu..
SGD 2.00
Dwarf Neon Rainbowfish (Melanotaenia Praecox)
Dwarf Neon Rainbowfish (Melano..
SGD 43.00
Melatanaenia macculloch rainbow 3cm
Melatanaenia macculloch rainbo..
SGD 2.20
Red Rainbow 5cm
Red Rainbow 5cm
SGD 2.75
Paska's Blue Eye Rainbowfish (Pseudomugil paskai)
Paska's Blue Eye Rainbowfish (..
SGD 43.00
Red Rainbow Fish ML
Red Rainbow Fish ML
SGD 2.00
Threadfin Rainbowfish (Iriatherina Werneri)
Threadfin Rainbowfish (Iriathe..
SGD 43.00
Blue Rainbow 4cm
Blue Rainbow 4cm
SGD 2.75
Red-Finned Blue Eye Rainbowfish (Pseudomugil ivantsoffi)
Red-Finned Blue Eye Rainbowfis..
SGD 43.00
Boosemani Rainbowfish 4-5cm
Boosemani Rainbowfish 4-5cm
SGD 3.30
Delicate Blue Eye Rainbowfish (Pseudomugil tenellus)
Delicate Blue Eye Rainbowfish ..
SGD 43.00
Neon dwarf rainbowfish 3cm
Neon dwarf rainbowfish 3cm
SGD 1.65
Threadfin rainbow 2.5-3cm
Threadfin rainbow 2.5-3cm
SGD 2.20
Boosemani rainbow XL 6-7cm
Boosemani rainbow XL 6-7cm
SGD 13.20
Pseudomugil Luminatus
Pseudomugil Luminatus
SGD 2.00
Pacific Blue Eye Rainbowfish (Pseudomugil Signifer)
Pacific Blue Eye Rainbowfish (..
SGD 43.00
Madagascar rainbow 3-4cm
Madagascar rainbow 3-4cm
SGD 3.03
Forktail rainbow 2cm
Forktail rainbow 2cm
SGD 1.98
Lake Kutubu Rainbowfish (Melanotaenia Lacustris)
Lake Kutubu Rainbowfish (Melan..
SGD 43.00
Celebes rainbowfish 4cm
Celebes rainbowfish 4cm
SGD 2.20
Spotted Blue-Eye Rainbowfish (Pseudomugil gertrudae)
Spotted Blue-Eye Rainbowfish (..
SGD 43.00
Neon Rainbow Fish
Neon Rainbow Fish
SGD 5.00
Red Neon Blue Eye Rainbowfish (Pseudomugil luminatus "Red")
Red Neon Blue Eye Rainbowfish ..
SGD 43.00
Parkinson's Rainbowfish (Melanotaenia Parkinsoni)
Parkinson's Rainbowfish (Melan..
SGD 43.00