A highly active, schooling species native to the fast-flowing, clear streams of Australia's Northern Territory. True to their name, they display stunning metallic bodies with bright red-tipped fins. They require pristine, well-oxygenated water, plenty of horizontal swimming space, and should always be kept in groups of 6 or more.
Exquisite Rainbowfish At a Glance
Exquisite Rainbowfish Tank Requirements
Will Exquisite Rainbowfish fit in your tank?
Care guides tell you what Exquisite Rainbowfish needs, the next question is whether your tank can safely provide it. Test Exquisite Rainbowfish against your tank size, maintenance needs, and the fish you already keep before you buy.
Useful setup supplies
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Exquisite Rainbowfish Water Parameters
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Exquisite Rainbowfish Temperament & Compatibility
Exquisite Rainbowfish Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Male
Males exhibit a deeper body profile, brilliant metallic olive/silver scales, and striking carmine red stripes on their longer dorsal and anal fins. They constantly 'flash' their colors to establish dominance hierarchy and court females.
Differs in 2 traits from base species
Also known as: Standard, Display Male
Female
Females are noticeably slimmer and lack the vivid red finnage of the males, appearing mostly silver or pale olive. They are essential for a healthy school dynamic, diffusing the attention of courting males.
Differs in 2 traits from base species
Also known as: Unsexed Juvenile
Exquisite Rainbowfish Care Guide Summary
The Exquisite Rainbowfish, scientifically known as Melanotaenia exquisita, belongs to the Rainbowfish family group. Adults reach a maximum size of approximately 8 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 low level of biological waste.
To thrive, the Exquisite Rainbowfish requires a freshwater only aquarium with a minimum volume of 110 litres and a tank length of at least 90 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 Exquisite 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.
Exquisite Rainbowfish Habitat Setup
When setting up an aquarium for the Exquisite 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.
Exquisite Rainbowfish Compatibility Notes
Classified as peaceful, the Exquisite 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, 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.
Exquisite Rainbowfish Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Exquisite Rainbowfish.
30 Gallon Breeder
40 Gallon Breeder
55 Gallon Standard
60 Gallon Breeder
75 Gallon Standard
90 Gallon Standard
Show 10 more tank sizes
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Frequently Asked Questions About Exquisite Rainbowfish
How big does Exquisite Rainbowfish get?
Exquisite Rainbowfish (Melanotaenia exquisita) typically reaches a maximum adult size of approximately 8 cm. They have a compressed body shape and a moderate growth rate.
What tank size does Exquisite Rainbowfish need?
A minimum aquarium volume of 110 litres and a tank length of at least 90 cm are recommended for Exquisite Rainbowfish. This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Exquisite Rainbowfish need?
Exquisite 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 Exquisite Rainbowfish peaceful or aggressive?
Exquisite 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 Exquisite Rainbowfish should be kept together?
Exquisite 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 Exquisite Rainbowfish have any special tank requirements?
Yes. Exquisite Rainbowfish benefits from plants - densely covered in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.
Does Exquisite Rainbowfish need a lid on the tank?
Yes. Exquisite 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 Exquisite Rainbowfish
These fish are strong compatibility matches for Exquisite 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 Exquisite Rainbowfish
These plants pair well with Exquisite 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 Exquisite Rainbowfish
Eastern Rainbowfish
Melanotaenia splendida
An active, schooling species native to Australia, highly variable in color depending on the catch location. They are fast swimmers that require long tanks with ample open swimming space. Because of their energetic feeding behavior, they can outcompete shy or slow-moving fish. Best kept in shoals to display natural morning sparring and courtship behaviors.
Banded Rainbowfish
Melanotaenia trifasciata
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.
Crimsonspotted Rainbowfish
Melanotaenia duboulayi
A highly active, schooling freshwater fish endemic to eastern Australia, often considered the original 'Australian Rainbowfish' in the aquarium trade. Recognizable by a prominent crimson red spot on the operculum (gill cover) and striking silvery-blue to greenish bodies. They are peaceful but extremely vigorous swimmers, requiring plenty of horizontal swimming space and a tight-fitting lid to prevent jumping.
Chequered Rainbowfish
Melanotaenia splendida inornata
An active, schooling rainbowfish native to the river systems of northern Australia. Named for the subtle iridescent, checkered pattern on their scales. They are highly energetic mid-water swimmers that require open horizontal swimming space combined with densely planted areas for security.
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.
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.