{"product_id":"threadfin-rainbowfish","title":"Threadfin Rainbowfish | Juvenile | 2 - 2.5 cm | Price Per Fish ₹250\/-","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003e🐠 Threadfin Rainbowfish\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cem\u003eIriatherina werneri\u003c\/em\u003e | Delicate Australian\/New Guinean rainbowfish with spectacular thread-like fins and graceful movement\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eBring exceptional elegance to your aquarium with the \u003cstrong\u003eThreadfin Rainbowfish\u003c\/strong\u003e. \u003cem\u003eIriatherina werneri\u003c\/em\u003e is a delicate and highly distinctive rainbowfish, famous for its elongated thread-like dorsal, anal, and pelvic fins and shimmering body coloration.\u003c\/p\u003e\n\u003cp\u003eIts graceful appearance makes it a superb choice for planted aquariums where its flowing finnage can be fully appreciated.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e✨ Why aquarists love Threadfin Rainbowfish\u003c\/h2\u003e\n\u003cp\u003e✔️ \u003cstrong\u003eSpectacular thread-like fins\u003c\/strong\u003e — long, flowing fin rays create an unmistakable silhouette\u003cbr\u003e✔️ \u003cstrong\u003eSubtle iridescent coloration\u003c\/strong\u003e — shimmering silver, blue, gold, and pink tones develop under good conditions\u003cbr\u003e✔️ \u003cstrong\u003ePeaceful schooling species\u003c\/strong\u003e — particularly attractive when maintained in a group\u003cbr\u003e✔️ \u003cstrong\u003eExceptional planted-tank appeal\u003c\/strong\u003e — looks stunning among fine-leaved plants and floating vegetation\u003cbr\u003e✔️ \u003cstrong\u003eUnique rainbowfish\u003c\/strong\u003e — very different from the larger, more robust rainbowfish commonly seen in the hobby\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🌍 About the species\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eIriatherina werneri\u003c\/em\u003e occurs naturally in \u003cstrong\u003enorthern Australia and southern New Guinea\u003c\/strong\u003e, inhabiting calm freshwater environments such as slow-moving streams, swamps, and vegetated waterways.\u003c\/p\u003e\n\u003cp\u003eThe species is characterized by:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSlender, delicate body\u003c\/li\u003e\n\u003cli\u003eIridescent silver to blue-grey coloration\u003c\/li\u003e\n\u003cli\u003eOrange, yellow, or reddish highlights\u003c\/li\u003e\n\u003cli\u003eExtremely elongated fin rays, particularly in males\u003c\/li\u003e\n\u003cli\u003eGraceful and relatively gentle swimming behavior\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMales generally develop the most elaborate finnage and strongest coloration.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🏡 Ideal aquarium setup\u003c\/h2\u003e\n\u003cp\u003eThreadfin Rainbowfish thrive best in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMature planted aquariums\u003c\/li\u003e\n\u003cli\u003ePeaceful community tanks\u003c\/li\u003e\n\u003cli\u003eNature-style aquascapes\u003c\/li\u003e\n\u003cli\u003eAustralian\/New Guinean biotope-inspired setups\u003c\/li\u003e\n\u003cli\u003eCalm, stable freshwater systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRecommended setup:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e60 liters or larger\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDense fine-leaved plants\u003c\/li\u003e\n\u003cli\u003eFloating plants and shaded areas\u003c\/li\u003e\n\u003cli\u003eOpen swimming space\u003c\/li\u003e\n\u003cli\u003eGentle water movement\u003c\/li\u003e\n\u003cli\u003eStable water parameters\u003c\/li\u003e\n\u003cli\u003eEfficient but non-aggressive filtration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e⚠️ Compatibility notes\u003c\/h2\u003e\n\u003cp\u003eThreadfin Rainbowfish are \u003cstrong\u003epeaceful and relatively delicate\u003c\/strong\u003e, so they should be housed with similarly calm 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\u003eFast, boisterous tankmates\u003c\/li\u003e\n\u003cli\u003ePersistent fin-nippers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTheir elaborate fins also make peaceful tankmates particularly important.\u003c\/p\u003e\n\u003cp\u003eBest suited for:\u003c\/p\u003e\n\u003cp\u003e✔️ Peaceful planted aquariums\u003cbr\u003e✔️ Australian\/New Guinean biotope setups\u003cbr\u003e✔️ Community tanks with gentle species\u003cbr\u003e✔️ Experienced and attentive aquarists\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 exceptionally elegant nano-to-medium community fish\u003cbr\u003e✔️ You maintain a mature planted aquarium\u003cbr\u003e✔️ You appreciate elaborate finnage and subtle iridescence\u003cbr\u003e✔️ You want an uncommon rainbowfish with delicate beauty\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e⚠️ Not ideal if:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eYou keep aggressive or predatory fish\u003c\/li\u003e\n\u003cli\u003eYour aquarium contains fin-nipping species\u003c\/li\u003e\n\u003cli\u003eYou have strong water currents\u003c\/li\u003e\n\u003cli\u003eYour aquarium is unstable or overcrowded\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 flowing elegance to your planted aquarium\u003c\/h2\u003e\n\u003cp\u003eExperience the spectacular finnage, subtle iridescence, and graceful presence of the \u003cstrong\u003eThreadfin Rainbowfish (\u003cem\u003eIriatherina werneri\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\"\u003eThreadfin Rainbowfish (\u003cem\u003eIriatherina werneri\u003c\/em\u003e)\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 Threadfin Rainbowfish (\u003cem\u003eIriatherina werneri\u003c\/em\u003e), offered by Nero Labs, is a delicate ornamental rainbowfish recognized for its slender body, shimmering coloration, and exceptionally elongated thread-like fins. Native to freshwater habitats of northern Australia and New Guinea, this species naturally occurs in slow-moving streams, swamps, floodplain channels, and heavily vegetated waters with gentle flow.\u003c\/p\u003e\n\u003cp\u003eThe body typically displays a silvery to olive-golden base with subtle iridescent blue, green, and violet reflections. Mature males develop spectacular elongated rays extending from the dorsal, anal, and pelvic fins, creating the characteristic threadfin appearance. Depending on mood, maturity, and condition, males can develop stronger reddish, orange, or violet accents across the body and fins, while females generally have shorter finnage and a more understated appearance.\u003c\/p\u003e\n\u003cp\u003eBehaviour is peaceful, gentle, and highly social. Threadfin Rainbowfish spend much of their time in the upper and middle portions of the aquarium, moving gracefully through vegetation and open swimming areas. Males frequently display their extended fins to females and rival males, producing an engaging natural courtship display. Their peaceful temperament makes them particularly suitable for calm community aquaria containing similarly gentle species.\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. This lineage represents domesticated ornamental stock maintained for finnage quality, colour development, 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 ornamental rainbowfish\u003cbr\u003e\u003cstrong\u003eBehaviour:\u003c\/strong\u003e Peaceful, gentle, social\u003cbr\u003e\u003cstrong\u003eSwimming profile:\u003c\/strong\u003e Upper to midwater, graceful vegetation-associated movement\u003cbr\u003e\u003cstrong\u003eFeeding behaviour:\u003c\/strong\u003e Omnivorous; benefits from appropriately sized prepared, frozen, and live feeds\u003cbr\u003e\u003cstrong\u003eHabitat preference:\u003c\/strong\u003e Dense aquatic vegetation, floating plants, shaded areas, and gentle water movement\u003cbr\u003e\u003cstrong\u003eColour development:\u003c\/strong\u003e Progressive; iridescence and male fin coloration intensify with maturity and conditioning\u003cbr\u003e\u003cstrong\u003eSexual dimorphism:\u003c\/strong\u003e Pronounced; males develop dramatically elongated dorsal, anal, and pelvic fin rays\u003cbr\u003e\u003cstrong\u003eBreeding behaviour:\u003c\/strong\u003e Egg scatterer with no parental care\u003c\/p\u003e\n\u003cp\u003eMinor variation in fin-ray length, body coloration, iridescence, and pattern intensity 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 Threadfin Rainbowfish is cycle-dependent and determined by biological readiness rather than inventory-driven targets. This species is best suited to aquarists able to provide stable, mature planted systems and peaceful tankmates.\u003c\/p\u003e\n\u003cp\u003eBest suited for heavily planted community aquaria, Australian\/New Guinea-inspired biotopes, nano-to-medium freshwater displays, and species-focused aquariums emphasizing elegant finnage and natural courtship behaviour.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eImportant Note\u003c\/h2\u003e\n\u003cp\u003eThreadfin Rainbowfish are delicate compared with many larger rainbowfish and should be housed with peaceful, non-aggressive tankmates. Gentle filtration, abundant vegetation, and access to small foods are particularly important for maintaining their condition and protecting their elongated finnage.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eEthical \u0026amp; Operational Context\u003c\/h2\u003e\n\u003cp\u003eDistribution of Threadfin Rainbowfish through Nero Labs prioritizes organism welfare, lineage integrity, and responsible propagation of ornamental 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":44162034958414,"sku":null,"price":250.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/5309\/7550\/files\/Threadfinrainbow.jpg?v=1786621182","url":"https:\/\/shop.nerolabs.org\/products\/threadfin-rainbowfish","provider":"The Nero Labs Store","version":"1.0","type":"link"}