A large, robust, and highly active schooling fish native to Northern Australia. Famous for its intense geographic color variations (such as the red 'Goyder River' morph). They are peaceful but incredibly fast and vigorous swimmers, requiring long aquariums with plenty of open swimming space.
Banded Rainbowfish At a Glance
Banded Rainbowfish Tank Requirements
Will Banded Rainbowfish fit in your tank?
Care guides tell you what Banded Rainbowfish needs, the next question is whether your tank can safely provide it. Test Banded Rainbowfish against your tank size, maintenance needs, and the fish you already keep before you buy.
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Banded Rainbowfish Water Parameters
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Banded Rainbowfish Temperament & Compatibility
Banded Rainbowfish Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Male
Males develop a pronounced, deep body (high back) and brilliant, saturated coloration as they mature. They spend much of their morning actively displaying to females. Their deeper body shape increases their relative bioload.
Differs in 1 trait from base species
Also known as: Goyder River, Wonga Creek, Running Creek, Show Male
Female
Females are much more streamlined (torpedo-shaped) and exhibit subdued, silvery-grey coloration compared to males. A healthy school should maintain an equal or greater number of females to distribute male courtship harassment.
Differs in 2 traits from base species
Also known as: Female
Banded Rainbowfish Care Guide Summary
The Banded Rainbowfish, scientifically known as Melanotaenia trifasciata, belongs to the Rainbowfish family group. Adults reach a maximum size of approximately 13 cm and have a compressed body shape with a moderate growth rate. Classified as peaceful, this species primarily occupies the surface and mid-level zones of the aquarium and produces a medium level of biological waste.
To thrive, the Banded Rainbowfish requires a freshwater only aquarium with a minimum volume of 200 litres and a tank length of at least 120 cm. Water temperature should be maintained between 24°C and 30°C, with a pH range of 6.5–8 and a general hardness of 5–20 dGH. A high water flow is preferred.
With modest requirements and a forgiving temperament, the Banded Rainbowfish is an excellent choice for beginners and seasoned hobbyists alike. This species is available in 2 varieties: Male and Female. Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.
Banded Rainbowfish Habitat Setup
When setting up an aquarium for the Banded Rainbowfish, a high water flow best suits their natural preferences. Because this species occupies the surface and mid-level zones, the aquarium layout should prioritise adequate surface area with floating cover to make them feel secure near the waterline and open swimming space in the centre of the tank for free movement. Keepers should note that a tight-fitting lid is essential, as this species is a known jumper.
Banded Rainbowfish Compatibility Notes
Classified as peaceful, the Banded Rainbowfish is a schooling species that feels most secure in a sizeable group, where natural shoaling behaviour reduces stress and brings out their best colours. When choosing tankmates, shy or slow-feeding tankmates may be outcompeted at feeding time and their energetic swimming style may stress more sedentary or timid species. Selecting tankmates that favour different water layers from the surface and mid-level zones can help reduce competition and territorial overlap.
Banded Rainbowfish Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Banded Rainbowfish.
55 Gallon Standard
60 Gallon Breeder
75 Gallon Standard
90 Gallon Standard
125 Gallon Standard
150 Gallon High
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Frequently Asked Questions About Banded Rainbowfish
How big does Banded Rainbowfish get?
Banded Rainbowfish (Melanotaenia trifasciata) typically reaches a maximum adult size of approximately 13 cm. They have a compressed body shape and a moderate growth rate.
What tank size does Banded Rainbowfish need?
A minimum aquarium volume of 200 litres and a tank length of at least 120 cm are recommended for Banded Rainbowfish. This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Banded Rainbowfish need?
Banded Rainbowfish thrives in freshwater only conditions with a temperature range of 24–30°C, a pH between 6.5 and 8, and a general hardness of 5–20 dGH. A high water flow is preferred.
Is Banded Rainbowfish peaceful or aggressive?
Banded Rainbowfish is classified as peaceful with an aggression score of 2 out of 10. They are generally well-suited to peaceful community tanks.
How many Banded Rainbowfish should be kept together?
Banded Rainbowfish is a schooling species and should be kept in groups of at least 6. Larger groups help distribute aggression and encourage natural schooling behaviour.
Does Banded Rainbowfish need a lid on the tank?
Yes. Banded Rainbowfish is a known jumper, and a tight-fitting lid or cover is essential to prevent escape. Even a small gap can be enough for a determined fish to leap out.
Top Tank Mates for Banded Rainbowfish
These fish are strong compatibility matches for Banded Rainbowfish based on water preferences, temperament, adult size, and tank behavior.
Bandit Cory
Corydoras metae
Ideal Tank MatesAsher Cory
Corydoras tukano
Ideal Tank MatesPanda Garra
Garra flavatra
Ideal Tank MatesJulii Corydoras (False Julii)
Corydoras trilineatus
Ideal Tank MatesBristlenose Pleco
Ancistrus cf. cirrhosus
Ideal Tank MatesCommon Pleco
Hypostomus plecostomus
Ideal Tank MatesPlants That Suit Banded Rainbowfish
These plants pair well with Banded Rainbowfish based on shared water preferences, layout fit, and how likely they are to hold up in the same aquarium.
African Water Fern
Bolbitis heudelotii
Boivin's Aponogeton
Aponogeton boivinianus
Capuron's Aponogeton
Aponogeton capuronii
Madagascar Lace Plant
Aponogeton madagascariensis
African Onion Plant
Crinum calamistratum
Afzel's Anubias
Anubias afzelii
Fish Similar to Banded Rainbowfish
Axelrod's Rainbowfish
Chilatherina axelrodi
A highly active, colorful schooling fish native to Papua New Guinea. Known for a bluish-grey upper body and yellowish-white lower body divided by a dark lateral stripe. Like most rainbowfish, they are incredibly fast, active swimmers that require pristine water, moderate flow, and significant horizontal swimming space.
Celebes Rainbowfish
Marosatherina ladigesi
An active, schooling fish native to the karst (limestone) streams of Sulawesi, Indonesia. Known for their striking neon blue lateral stripes and yellowish fins. They strictly require hard, alkaline water to thrive and are highly sensitive to soft, acidic conditions. A peaceful species that requires plenty of open swimming space.
Red Rainbowfish
Glossolepis incisus
Native to Lake Sentani in Indonesia, this species is famous for the brilliant salmon-red coloration of mature males. They are large, active schooling fish that develop a distinct high-arched back as they age. Females are vastly different in appearance (olive-gold). They require hard, alkaline water and plenty of swimming space.
Arfak Rainbowfish
Melanotaenia arfakensis
A lively and relatively rare schooling fish endemic to the fast-flowing streams of the Bird's Head Peninsula in West Papua. Known for their energetic swimming and beautiful subtle coloration, with dominant males displaying bright orange-red fins edged in black. As active swimmers, they require long aquariums with high oxygenation and moderate to high water flow.
Turquoise Rainbowfish
Melanotaenia lacustris
A stunning, deep-bodied rainbowfish endemic to Lake Kutubu in Papua New Guinea. Famous for their ability to shift colors from deep teal to bright iridescent blue depending on mood and water quality. They are active schooling fish that thrive in hard, alkaline water.
Banded Gourami
Trichogaster fasciata
The Banded Gourami is a robust and hardy labyrinth fish known for its striking diagonal stripes. Considerably larger than the Dwarf Gourami, they are active swimmers but generally peaceful in community settings. They require access to the water's surface to breathe atmospheric air. Males can be highly territorial toward each other.