A beautiful and active schooling fish native to the Yakati River system in West Papua. Named in honor of the Australia New Guinea Fishes Association (ANGFA). Like many large rainbowfish, they are vigorous swimmers that require long aquariums to thrive. They display their best colors in well-planted tanks with clean, well-oxygenated water.
Angfa Rainbowfish At a Glance
Angfa Rainbowfish Tank Requirements
Will Angfa Rainbowfish fit in your tank?
Care guides tell you what Angfa Rainbowfish needs, the next question is whether your tank can safely provide it. Test Angfa Rainbowfish against your tank size, maintenance needs, and the fish you already keep before you buy.
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Angfa Rainbowfish Water Parameters
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Angfa Rainbowfish Temperament & Compatibility
Angfa Rainbowfish Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Male
Males develop a much deeper body profile, extended dorsal and anal fins, and vibrant yellow to reddish-orange coloration as they mature. They frequently display to one another to establish a hierarchy.
Differs in 1 trait from base species
Also known as: Show Male, Colorful
Female
Females are slightly smaller, possess a more streamlined (shallower) body, and exhibit more subdued, silvery-yellow coloration. Essential for maintaining group harmony.
Differs in 2 traits from base species
Also known as: Silver
Angfa Rainbowfish Care Guide Summary
The Angfa Rainbowfish, scientifically known as Melanotaenia angfa, 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 Angfa 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 28°C, with a pH range of 7–8 and a general hardness of 5–15 dGH. A moderate water flow is preferred.
The Angfa Rainbowfish is a rewarding species to keep, provided its core environmental needs are met. 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.
Angfa Rainbowfish Habitat Setup
When setting up an aquarium for the Angfa Rainbowfish, a moderate 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. Useful additions include dense planting to provide cover, break sightlines, and reduce stress. Keepers should note that a tight-fitting lid is essential, as this species is a known jumper.
Angfa Rainbowfish Compatibility Notes
Classified as peaceful, the Angfa 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.
Angfa Rainbowfish Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Angfa 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 Angfa Rainbowfish
How big does Angfa Rainbowfish get?
Angfa Rainbowfish (Melanotaenia angfa) 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 Angfa Rainbowfish need?
A minimum aquarium volume of 200 litres and a tank length of at least 120 cm are recommended for Angfa Rainbowfish. This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Angfa Rainbowfish need?
Angfa Rainbowfish thrives in freshwater only conditions with a temperature range of 24–28°C, a pH between 7 and 8, and a general hardness of 5–15 dGH. A moderate water flow is preferred.
Is Angfa Rainbowfish peaceful or aggressive?
Angfa 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 Angfa Rainbowfish should be kept together?
Angfa 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 Angfa Rainbowfish have any special tank requirements?
Yes. Angfa Rainbowfish benefits from plants - densely covered in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.
Does Angfa Rainbowfish need a lid on the tank?
Yes. Angfa 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 Angfa Rainbowfish
These fish are strong compatibility matches for Angfa Rainbowfish based on water preferences, temperament, adult size, and tank behavior.
Dainty Cory (Salt and Pepper Cory)
Corydoras habrosus
Ideal Tank MatesZebra Shovelnose (Tigrinus Catfish)
Brachyplatystoma tigrinum
Ideal Tank MatesEmerald Green Cory
Corydoras splendens
Ideal Tank MatesAngelicus Botia
Botia kubotai
Ideal Tank MatesGolden Bristlenose Pleco
Ancistrus sp. L144
Ideal Tank MatesAgassiz Cory
Corydoras agassizii
Ideal Tank MatesPlants That Suit Angfa Rainbowfish
These plants pair well with Angfa Rainbowfish based on shared water preferences, layout fit, and how likely they are to hold up in the same aquarium.
Afzel's Anubias
Anubias afzelii
Amazon Sword
Echinodorus amazonicus
Anacharis
Egeria densa
Anubias Barteri
Anubias barteri
Baby Tears
Lindernia rotundifolia
Balansae
Cryptocoryne crispatula
Fish Similar to Angfa Rainbowfish
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.
Bulolo Rainbowfish
Chilatherina bulolo
A rare and highly active rainbowfish native to the fast-flowing mountain streams and white-water rapids of the Markham and Ramu river systems in Papua New Guinea. They possess a silvery body with a distinct black streak on the upper and lower edges of the caudal fin. Because of their specialized natural habitat, they require highly oxygenated, fast-flowing water and alkaline conditions to thrive in an aquarium.
Price's Rainbowfish
Chilatherina pricei
A rare, energetic, and beautiful species native to the Reifafeif River on Yapen Island, Indonesia. They form midwater aggregations in main river channels over rocks and boulders. Like most large rainbowfishes, they are rapid, continuous swimmers that require long aquariums with moderate to high water flow and pristine, oxygen-rich conditions.
Barred Rainbowfish
Chilatherina fasciata
A robust, active, and highly colorful schooling fish native to the clear, fast-flowing streams of New Guinea. They are named for the distinctive vertical black bars on their lower flanks. As highly active swimmers that do best in hard, alkaline water, they require a spacious, long aquarium (minimum 4 feet) with strong oxygenation and plenty of open swimming space.
Allen's Rainbowfish
Chilatherina alleni
A rare and highly active rainbowfish native to West Papua, Indonesia (Wapoga River basin). Known as the 'Wapoga Rainbowfish', they undergo a dramatic color transformation as they mature, developing intense metallic blues, greens, and reds. As exceptionally fast, continuous swimmers, they require a 4-foot (120cm) aquarium minimum to thrive without stress.
Blue Rainbowfish
Melanotaenia caerulea
A small, highly active, and colorful schooling fish native to the Kikori River system in Papua New Guinea. They are peaceful but require ample swimming space and a school of their own kind to thrive. Like most rainbowfish, they appreciate well-oxygenated, flowing water and are excellent jumpers. Males develop a striking blue hue with reddish horizontal stripes.