{"product_id":"australian-rainbowfish","title":"Australian Rainbowfish | Juvenile | 5 - 6 cm | Price Per Fish ₹250\/-","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003e🐠 Australian Rainbowfish\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cem\u003eMelanotaenia fluviatilis\u003c\/em\u003e | Elegant Australian rainbowfish with shimmering blue-green coloration and peaceful schooling appeal\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eBring the beauty of Australia's freshwater systems into your aquarium with the \u003cstrong\u003eAustralian Rainbowfish (\u003cem\u003eMelanotaenia fluviatilis\u003c\/em\u003e)\u003c\/strong\u003e. This active and peaceful rainbowfish is admired for its shimmering body coloration, streamlined form, and attractive schooling behavior.\u003c\/p\u003e\n\u003cp\u003eAs they mature, males can develop stronger iridescent coloration and impressive finnage, making a group of Australian Rainbowfish a beautiful feature in a spacious planted aquarium.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e✨ Why aquarists love Australian Rainbowfish\u003c\/h2\u003e\n\u003cp\u003e✔️ \u003cstrong\u003eBeautiful iridescence\u003c\/strong\u003e — blue, green, silver, and golden tones can shimmer across the body\u003cbr\u003e✔️ \u003cstrong\u003eActive schooling fish\u003c\/strong\u003e — creates constant movement and visual interest\u003cbr\u003e✔️ \u003cstrong\u003ePeaceful temperament\u003c\/strong\u003e — works well in compatible community aquariums\u003cbr\u003e✔️ \u003cstrong\u003eDistinctive Australian species\u003c\/strong\u003e — an excellent choice for rainbowfish enthusiasts\u003cbr\u003e✔️ \u003cstrong\u003eMales develop stronger coloration\u003c\/strong\u003e — mature males can become particularly spectacular\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🌍 About the species\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eMelanotaenia fluviatilis\u003c\/em\u003e is a freshwater rainbowfish native to \u003cstrong\u003esoutheastern Australia\u003c\/strong\u003e, particularly river systems associated with the Murray–Darling Basin.\u003c\/p\u003e\n\u003cp\u003eIt is commonly associated with flowing and slow-moving freshwater habitats where aquatic vegetation and submerged structures provide shelter.\u003c\/p\u003e\n\u003cp\u003eThe species is characterized by:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSlender, laterally compressed body\u003c\/li\u003e\n\u003cli\u003eBlue-green to silvery iridescence\u003c\/li\u003e\n\u003cli\u003eSubtle golden and reddish highlights\u003c\/li\u003e\n\u003cli\u003eTwo dorsal fins\u003c\/li\u003e\n\u003cli\u003eAttractive contrasting finnage\u003c\/li\u003e\n\u003cli\u003ePeaceful schooling behavior\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMales generally develop stronger coloration and more pronounced finnage than females.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🏡 Ideal aquarium setup\u003c\/h2\u003e\n\u003cp\u003eAustralian Rainbowfish thrive best in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpacious planted aquariums\u003c\/li\u003e\n\u003cli\u003eRainbowfish community tanks\u003c\/li\u003e\n\u003cli\u003eAustralian biotope-inspired setups\u003c\/li\u003e\n\u003cli\u003eNature-style aquascapes\u003c\/li\u003e\n\u003cli\u003eMature freshwater systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRecommended setup:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e120 liters or larger\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eOpen swimming area\u003c\/li\u003e\n\u003cli\u003eDense plants around the sides and rear\u003c\/li\u003e\n\u003cli\u003eSome floating vegetation for shade\u003c\/li\u003e\n\u003cli\u003eSmooth substrate\u003c\/li\u003e\n\u003cli\u003eModerate water movement\u003c\/li\u003e\n\u003cli\u003eStrong biological filtration\u003c\/li\u003e\n\u003cli\u003eStable, well-oxygenated water\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA longer aquarium is particularly beneficial because these are active swimmers.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e⚠️ Compatibility notes\u003c\/h2\u003e\n\u003cp\u003eAustralian Rainbowfish are \u003cstrong\u003epeaceful schooling fish\u003c\/strong\u003e, making them suitable for community aquariums with similarly sized, non-aggressive species.\u003c\/p\u003e\n\u003cp\u003eNot ideal with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge predatory fish\u003c\/li\u003e\n\u003cli\u003eAggressive cichlids\u003c\/li\u003e\n\u003cli\u003ePersistent fin-nippers\u003c\/li\u003e\n\u003cli\u003eExtremely slow or timid species\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBest suited for:\u003c\/p\u003e\n\u003cp\u003e✔️ Rainbowfish community aquariums\u003cbr\u003e✔️ Planted tanks\u003cbr\u003e✔️ Australian biotope-inspired setups\u003cbr\u003e✔️ Medium-to-large peaceful community aquariums\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🚚 Professionally packed for live arrival\u003c\/h2\u003e\n\u003cp\u003eEvery shipment is treated as a \u003cstrong\u003elive biological transport\u003c\/strong\u003e, not a standard parcel.\u003c\/p\u003e\n\u003cp\u003eYour fish are packed using:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOxygen-filled fish bags\u003c\/li\u003e\n\u003cli\u003eTemperature-insulated packaging\u003c\/li\u003e\n\u003cli\u003eShock-resistant thermocol protection\u003c\/li\u003e\n\u003cli\u003eFastest safe transport routes available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis minimizes transit stress and improves live arrival success.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🛡️ Live Arrival Guaranteed*\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eInstant Refund for DoAs in accordance with our Refund Policy.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e👉 You are not taking the risk alone.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🧭 Is this right for you?\u003c\/h2\u003e\n\u003cp\u003e✔️ You want an active and colorful Australian species\u003cbr\u003e✔️ You enjoy schooling fish with natural iridescence\u003cbr\u003e✔️ You maintain a spacious planted aquarium\u003cbr\u003e✔️ You want something beyond the usual tropical community fish\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e⚠️ Not ideal if:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eYou maintain a small aquarium\u003c\/li\u003e\n\u003cli\u003eYour tank lacks swimming space\u003c\/li\u003e\n\u003cli\u003eYou keep aggressive or predatory species\u003c\/li\u003e\n\u003cli\u003eYou want a sedentary centerpiece fish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e🔬 Nero Labs Standard\u003c\/h2\u003e\n\u003cp\u003eThese fish are maintained with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eControlled batch monitoring\u003c\/li\u003e\n\u003cli\u003eObservation-based selection\u003c\/li\u003e\n\u003cli\u003eStress-aware handling\u003c\/li\u003e\n\u003cli\u003eSurvival-focused transport preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe prioritize long-term health, structural quality, coloration, and behavioral stability over bulk-volume movement.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e👉 Add Australian iridescence to your aquarium\u003c\/h2\u003e\n\u003cp\u003eExperience the shimmering coloration, active schooling behavior, and distinctive character of the \u003cstrong\u003eAustralian Rainbowfish (\u003cem\u003eMelanotaenia fluviatilis\u003c\/em\u003e)\u003c\/strong\u003e from \u003cstrong\u003eNero Labs\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003e\n\u003cspan role=\"text\"\u003eAustralian Rainbowfish \u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Australian Rainbowfish (\u003cem\u003eMelanotaenia fluviatilis\u003c\/em\u003e), also known as the Murray River Rainbowfish, is a peaceful Australian rainbowfish recognized for its elongated body, shimmering blue-green and silver coloration, and active schooling behaviour. It is native to freshwater systems of southeastern Australia, particularly the Murray–Darling Basin, where it occurs in rivers, streams, billabongs, and vegetated waterways.\u003c\/p\u003e\n\u003cp\u003eThe body typically displays a silvery base with iridescent blue, green, and turquoise tones that become increasingly vivid as the fish matures. Mature males can develop stronger blue-green coloration along the flanks, a deeper body profile, and contrasting yellowish to orange tones in the fins. Females are generally slimmer with comparatively subdued coloration. Under good lighting, the reflective scales produce the characteristic rainbow-like sheen for which the species is known.\u003c\/p\u003e\n\u003cp\u003eBehaviour is peaceful, active, and strongly social. \u003cem\u003eMelanotaenia fluviatilis\u003c\/em\u003e is an energetic midwater swimmer that thrives in groups and displays fascinating social interactions throughout the aquarium. Males may perform lateral displays toward females and rival males, extending their fins and intensifying their colours during courtship and social competition.\u003c\/p\u003e\n\u003cp\u003eSpecimens supplied are lab-reared and system-acclimated within controlled, closed-system environments, minimizing early-life stress and supporting reliable long-term adaptation to aquarium conditions. Stock is maintained for colour development, structural quality, behavioural stability, and aquarium suitability.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eSystem \u0026amp; Rearing Notes\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e In-house, Nero Labs\u003cbr\u003e\u003cstrong\u003eRearing environment:\u003c\/strong\u003e Controlled, closed system\u003cbr\u003e\u003cstrong\u003eLine status:\u003c\/strong\u003e Selectively maintained Australian rainbowfish\u003cbr\u003e\u003cstrong\u003eBehaviour:\u003c\/strong\u003e Peaceful, active, schooling\u003cbr\u003e\u003cstrong\u003eSwimming profile:\u003c\/strong\u003e Midwater to upper water column\u003cbr\u003e\u003cstrong\u003eFeeding behaviour:\u003c\/strong\u003e Omnivorous; accepts prepared, frozen, and live feeds\u003cbr\u003e\u003cstrong\u003eHabitat preference:\u003c\/strong\u003e Planted aquaria with open swimming areas, good oxygenation, and moderate circulation\u003cbr\u003e\u003cstrong\u003eColour development:\u003c\/strong\u003e Progressive; blue-green iridescence and fin coloration intensify with maturity and conditioning\u003cbr\u003e\u003cstrong\u003eSexual dimorphism:\u003c\/strong\u003e Pronounced; males generally develop deeper bodies, stronger coloration, and more elaborate finnage\u003cbr\u003e\u003cstrong\u003eBreeding behaviour:\u003c\/strong\u003e Egg scatterer with no parental care\u003c\/p\u003e\n\u003cp\u003eMinor variation in body colour, iridescence, fin coloration, and body depth may occur between individuals and reflects normal biological diversity within maintained ornamental populations.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eAvailability \u0026amp; Use\u003c\/h2\u003e\n\u003cp\u003eAvailability of \u003cem\u003eMelanotaenia fluviatilis\u003c\/em\u003e is cycle-dependent and determined by biological readiness rather than inventory-driven targets. This species is best suited to aquarists able to provide sufficient swimming space and stable, well-oxygenated water.\u003c\/p\u003e\n\u003cp\u003eBest suited for Australian biotope aquaria, spacious planted community systems, and dedicated rainbowfish displays emphasizing active schooling behaviour and natural colour development.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eImportant Note\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eM. fluviatilis\u003c\/em\u003e is an active swimmer and should be provided with adequate horizontal swimming space. Maintaining a group encourages natural social behaviour and helps males display their characteristic coloration. Strong filtration, good oxygenation, and peaceful tankmates are recommended.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eEthical \u0026amp; Operational Context\u003c\/h2\u003e\n\u003cp\u003eDistribution of \u003cem\u003eMelanotaenia fluviatilis\u003c\/em\u003e through Nero Labs prioritizes organism welfare, lineage integrity, and responsible propagation of ornamental Australian rainbowfish. Proceeds support refinement of rainbowfish husbandry protocols, breeding-line management, behavioural observation, and applied ornamental aquaculture initiatives.\u003c\/p\u003e","brand":"The Nero Labs Store","offers":[{"title":"Default Title","offer_id":44167648641102,"sku":null,"price":250.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/5309\/7550\/files\/AustraianRainbowfish.jpg?v=1786691762","url":"https:\/\/shop.nerolabs.org\/products\/australian-rainbowfish","provider":"The Nero Labs Store","version":"1.0","type":"link"}