{"product_id":"costae-tetra","title":"Costae Tetra | Sub-adult | 2 - 3 cm | Price Per Fish ₹250\/-","description":"\u003ch1 data-section-id=\"1liggb4\" data-start=\"0\" data-end=\"31\" class=\"PDq2pG_selectionAnchorContainer\"\u003e🐠 Costae Tetra\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003ch3 data-section-id=\"1mww2ep\" data-start=\"32\" data-end=\"166\"\u003e\u003cspan role=\"text\"\u003e\u003cem data-start=\"36\" data-end=\"59\"\u003eHyphessobrycon costae\u003c\/em\u003e | Rare South American schooling tetra with shimmering silver-gold coloration and peaceful community appeal\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"168\" data-end=\"415\"\u003eEnhance your aquarium with the understated elegance of the \u003cstrong data-start=\"227\" data-end=\"243\"\u003eCostae Tetra\u003c\/strong\u003e. A relatively uncommon species in the aquarium hobby, \u003cem data-start=\"298\" data-end=\"321\"\u003eHyphessobrycon costae\u003c\/em\u003e is admired for its shimmering silver body, warm golden hues, and graceful schooling behavior.\u003c\/p\u003e\n\u003cp data-start=\"417\" data-end=\"575\"\u003eIts peaceful temperament and refined appearance make it an excellent choice for planted aquariums, South American biotopes, and well-balanced community tanks.\u003c\/p\u003e\n\u003chr data-start=\"577\" data-end=\"580\"\u003e\n\u003ch2 data-section-id=\"duekze\" data-start=\"582\" data-end=\"619\"\u003e✨ Why aquarists love Costae Tetras\u003c\/h2\u003e\n\u003cp data-start=\"621\" data-end=\"1069\"\u003e✔️ \u003cstrong data-start=\"624\" data-end=\"658\"\u003eElegant silver-gold coloration\u003c\/strong\u003e — subtle metallic sheen that glows under aquarium lighting\u003cbr data-start=\"717\" data-end=\"720\"\u003e✔️ \u003cstrong data-start=\"723\" data-end=\"751\"\u003eRarely available species\u003c\/strong\u003e — an excellent choice for collectors seeking something different\u003cbr data-start=\"816\" data-end=\"819\"\u003e✔️ \u003cstrong data-start=\"822\" data-end=\"849\"\u003ePeaceful schooling fish\u003c\/strong\u003e — displays natural behavior when maintained in groups\u003cbr data-start=\"903\" data-end=\"906\"\u003e✔️ \u003cstrong data-start=\"909\" data-end=\"942\"\u003ePerfect for planted aquariums\u003c\/strong\u003e — complements lush aquascapes beautifully\u003cbr data-start=\"984\" data-end=\"987\"\u003e✔️ \u003cstrong data-start=\"990\" data-end=\"1013\"\u003eHardy and adaptable\u003c\/strong\u003e — suitable for a variety of freshwater community setups\u003c\/p\u003e\n\u003chr data-start=\"1071\" data-end=\"1074\"\u003e\n\u003ch2 data-section-id=\"wbo6ca\" data-start=\"1076\" data-end=\"1099\"\u003e🌍 About the species\u003c\/h2\u003e\n\u003cp data-start=\"1101\" data-end=\"1266\"\u003e\u003cem data-start=\"1101\" data-end=\"1124\"\u003eHyphessobrycon costae\u003c\/em\u003e is native to the freshwater river systems of \u003cstrong data-start=\"1170\" data-end=\"1188\"\u003eeastern Brazil\u003c\/strong\u003e, where it inhabits slow-moving streams, tributaries, and vegetated waterways.\u003c\/p\u003e\n\u003cp data-start=\"1268\" data-end=\"1293\"\u003eThese fish are known for:\u003c\/p\u003e\n\u003cul data-start=\"1295\" data-end=\"1501\"\u003e\n\u003cli data-section-id=\"1vhu2ak\" data-start=\"1295\" data-end=\"1345\"\u003eMetallic silver body with soft golden highlights\u003c\/li\u003e\n\u003cli data-section-id=\"f8q6xq\" data-start=\"1346\" data-end=\"1376\"\u003eSlender, streamlined profile\u003c\/li\u003e\n\u003cli data-section-id=\"1fz71mb\" data-start=\"1377\" data-end=\"1419\"\u003eGraceful synchronized schooling behavior\u003c\/li\u003e\n\u003cli data-section-id=\"11ayecl\" data-start=\"1420\" data-end=\"1451\"\u003eCalm and peaceful temperament\u003c\/li\u003e\n\u003cli data-section-id=\"t9p9gf\" data-start=\"1452\" data-end=\"1501\"\u003eExcellent adaptability to established aquariums\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1503\" data-end=\"1662\"\u003eAlthough less commonly seen than many popular tetras, the Costae Tetra offers a refined beauty that becomes increasingly impressive when kept in larger groups.\u003c\/p\u003e\n\u003chr data-start=\"1664\" data-end=\"1667\"\u003e\n\u003ch2 data-section-id=\"15mb49p\" data-start=\"1669\" data-end=\"1695\"\u003e🏡 Ideal aquarium setup\u003c\/h2\u003e\n\u003cp data-start=\"1697\" data-end=\"1726\"\u003eCostae Tetras thrive best in:\u003c\/p\u003e\n\u003cul data-start=\"1728\" data-end=\"1863\"\u003e\n\u003cli data-section-id=\"7hurru\" data-start=\"1728\" data-end=\"1747\"\u003ePlanted aquariums\u003c\/li\u003e\n\u003cli data-section-id=\"h4phdk\" data-start=\"1748\" data-end=\"1765\"\u003eCommunity tanks\u003c\/li\u003e\n\u003cli data-section-id=\"1bx8ryw\" data-start=\"1766\" data-end=\"1791\"\u003eNature-style aquascapes\u003c\/li\u003e\n\u003cli data-section-id=\"657tp\" data-start=\"1792\" data-end=\"1826\"\u003eSouth American biotope aquariums\u003c\/li\u003e\n\u003cli data-section-id=\"17hel7q\" data-start=\"1827\" data-end=\"1863\"\u003eWell-maintained freshwater systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1865\" data-end=\"1883\"\u003eRecommended setup:\u003c\/p\u003e\n\u003cul data-start=\"1885\" data-end=\"2061\"\u003e\n\u003cli data-section-id=\"h4fbxl\" data-start=\"1885\" data-end=\"1906\"\u003e60 liters or larger\u003c\/li\u003e\n\u003cli data-section-id=\"kgn40\" data-start=\"1907\" data-end=\"1954\"\u003eDense aquatic plants with open swimming space\u003c\/li\u003e\n\u003cli data-section-id=\"8gna7p\" data-start=\"1955\" data-end=\"2001\"\u003eDark substrate to enhance natural coloration\u003c\/li\u003e\n\u003cli data-section-id=\"v6u5my\" data-start=\"2002\" data-end=\"2027\"\u003eStable water parameters\u003c\/li\u003e\n\u003cli data-section-id=\"j8m5wu\" data-start=\"2028\" data-end=\"2061\"\u003eEfficient biological filtration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2063\" data-end=\"2066\"\u003e\n\u003ch2 data-section-id=\"yo0l8n\" data-start=\"2068\" data-end=\"2093\"\u003e⚠️ Compatibility notes\u003c\/h2\u003e\n\u003cp data-start=\"2095\" data-end=\"2194\"\u003eCostae Tetras are \u003cstrong data-start=\"2113\" data-end=\"2140\"\u003epeaceful schooling fish\u003c\/strong\u003e that coexist well with other calm freshwater species.\u003c\/p\u003e\n\u003cp data-start=\"2196\" data-end=\"2211\"\u003eNot ideal with:\u003c\/p\u003e\n\u003cul data-start=\"2213\" data-end=\"2337\"\u003e\n\u003cli data-section-id=\"4s11sj\" data-start=\"2213\" data-end=\"2235\"\u003eLarge predatory fish\u003c\/li\u003e\n\u003cli data-section-id=\"3sbf07\" data-start=\"2236\" data-end=\"2257\"\u003eAggressive cichlids\u003c\/li\u003e\n\u003cli data-section-id=\"1jstoak\" data-start=\"2258\" data-end=\"2286\"\u003eHighly territorial species\u003c\/li\u003e\n\u003cli data-section-id=\"11pwqaj\" data-start=\"2287\" data-end=\"2337\"\u003eFish that may intimidate small schooling species\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2339\" data-end=\"2355\"\u003eBest suited for:\u003c\/p\u003e\n\u003cp data-start=\"2357\" data-end=\"2481\"\u003e✔️ Community aquariums\u003cbr data-start=\"2379\" data-end=\"2382\"\u003e✔️ Planted tanks\u003cbr data-start=\"2398\" data-end=\"2401\"\u003e✔️ South American biotope setups\u003cbr data-start=\"2433\" data-end=\"2436\"\u003e✔️ Beginner and experienced aquarists alike\u003c\/p\u003e\n\u003chr data-start=\"2483\" data-end=\"2486\"\u003e\n\u003ch2 data-section-id=\"1bcwe56\" data-start=\"2488\" data-end=\"2532\"\u003e🚚 Professionally packed for live arrival\u003c\/h2\u003e\n\u003cp data-start=\"2534\" data-end=\"2618\"\u003eEvery shipment is treated as a \u003cstrong data-start=\"2565\" data-end=\"2594\"\u003elive biological transport\u003c\/strong\u003e, not a standard parcel.\u003c\/p\u003e\n\u003cp data-start=\"2620\" data-end=\"2647\"\u003eYour fish are packed using:\u003c\/p\u003e\n\u003cul data-start=\"2649\" data-end=\"2789\"\u003e\n\u003cli data-section-id=\"qgs7fu\" data-start=\"2649\" data-end=\"2674\"\u003eOxygen-filled fish bags\u003c\/li\u003e\n\u003cli data-section-id=\"1y6w3jj\" data-start=\"2675\" data-end=\"2708\"\u003eTemperature-insulated packaging\u003c\/li\u003e\n\u003cli data-section-id=\"7j2osc\" data-start=\"2709\" data-end=\"2747\"\u003eShock-absorbing thermocol protection\u003c\/li\u003e\n\u003cli data-section-id=\"1turvm3\" data-start=\"2748\" data-end=\"2789\"\u003eFastest safe transport routes available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2791\" data-end=\"2855\"\u003eThis minimizes transit stress and improves live arrival success.\u003c\/p\u003e\n\u003chr data-start=\"2857\" data-end=\"2860\"\u003e\n\u003ch2 data-section-id=\"1xfck2v\" data-start=\"2862\" data-end=\"2893\"\u003e🛡️ Live Arrival Guaranteed*\u003c\/h2\u003e\n\u003cp data-start=\"2895\" data-end=\"2976\"\u003eInstant Refund for DoAs in accordance with our Refund Policy.\u003c\/p\u003e\n\u003cp data-start=\"2978\" data-end=\"3015\"\u003e👉 You are not taking the risk alone.\u003c\/p\u003e\n\u003chr data-start=\"3017\" data-end=\"3020\"\u003e\n\u003ch2 data-section-id=\"zc06vh\" data-start=\"3022\" data-end=\"3050\"\u003e🧭 Is this right for you?\u003c\/h2\u003e\n\u003cp data-start=\"3052\" data-end=\"3277\"\u003e✔️ You want a peaceful and elegant schooling fish\u003cbr data-start=\"3101\" data-end=\"3104\"\u003e✔️ You appreciate uncommon South American tetra species\u003cbr data-start=\"3159\" data-end=\"3162\"\u003e✔️ You maintain a planted or community aquarium\u003cbr data-start=\"3209\" data-end=\"3212\"\u003e✔️ You enjoy subtle, natural coloration over exaggerated patterns\u003c\/p\u003e\n\u003chr data-start=\"3279\" data-end=\"3282\"\u003e\n\u003ch2 data-section-id=\"3f13jj\" data-start=\"3284\" data-end=\"3303\"\u003e⚠️ Not ideal if:\u003c\/h2\u003e\n\u003cul data-start=\"3305\" data-end=\"3483\"\u003e\n\u003cli data-section-id=\"qur1pn\" data-start=\"3305\" data-end=\"3336\"\u003eYou keep large predatory fish\u003c\/li\u003e\n\u003cli data-section-id=\"1azu93k\" data-start=\"3337\" data-end=\"3387\"\u003eYour aquarium contains highly aggressive species\u003c\/li\u003e\n\u003cli data-section-id=\"yrymfq\" data-start=\"3388\" data-end=\"3432\"\u003eYou prefer bold, solitary centerpiece fish\u003c\/li\u003e\n\u003cli data-section-id=\"r936hq\" data-start=\"3433\" data-end=\"3483\"\u003eYou maintain very small or overcrowded aquariums\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3485\" data-end=\"3488\"\u003e\n\u003ch2 data-section-id=\"yv4pdx\" data-start=\"3490\" data-end=\"3514\"\u003e🔬 Nero Labs Standard\u003c\/h2\u003e\n\u003cp data-start=\"3516\" data-end=\"3547\"\u003eThese fish are maintained with:\u003c\/p\u003e\n\u003cul data-start=\"3549\" data-end=\"3673\"\u003e\n\u003cli data-section-id=\"rmus7m\" data-start=\"3549\" data-end=\"3578\"\u003eControlled batch monitoring\u003c\/li\u003e\n\u003cli data-section-id=\"14gql9y\" data-start=\"3579\" data-end=\"3608\"\u003eObservation-based selection\u003c\/li\u003e\n\u003cli data-section-id=\"wsdamy\" data-start=\"3609\" data-end=\"3632\"\u003eStress-aware handling\u003c\/li\u003e\n\u003cli data-section-id=\"19jahfm\" data-start=\"3633\" data-end=\"3673\"\u003eSurvival-focused transport preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3675\" data-end=\"3778\"\u003eWe prioritize long-term health, coloration quality, and behavioral stability over bulk-volume movement.\u003c\/p\u003e\n\u003chr data-start=\"3780\" data-end=\"3783\"\u003e\n\u003ch2 data-section-id=\"1eyukil\" data-start=\"3785\" data-end=\"3851\"\u003e👉 Add a rare touch of South American elegance to your aquarium\u003c\/h2\u003e\n\u003cp data-start=\"3853\" data-end=\"3975\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eExperience the subtle beauty, peaceful nature, and graceful schooling behavior of the \u003cstrong data-start=\"3939\" data-end=\"3955\"\u003eCostae Tetra\u003c\/strong\u003e from \u003cstrong data-start=\"3961\" data-end=\"3974\"\u003eNero Labs\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1anh7sq\" data-start=\"0\" data-end=\"43\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\n\u003cspan role=\"text\"\u003eCostae Tetra (\u003cem data-start=\"17\" data-end=\"40\"\u003eHyphessobrycon costae\u003c\/em\u003e)\u003c\/span\u003e\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"44\" data-end=\"59\"\u003e\u003cstrong data-start=\"44\" data-end=\"59\"\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"61\" data-end=\"477\"\u003eThe Costae Tetra (\u003cem data-start=\"79\" data-end=\"102\"\u003eHyphessobrycon costae\u003c\/em\u003e), offered by Nero Labs, is a selectively maintained ornamental characin recognized for its delicate golden-silver coloration, subtle iridescence, and peaceful schooling behaviour. Native to freshwater river systems of eastern Brazil, this species inhabits slow-moving streams and floodplain environments with dense riparian vegetation, soft substrates, and subdued lighting.\u003c\/p\u003e\n\u003cp data-start=\"479\" data-end=\"1040\"\u003eBody coloration typically presents as translucent silver to pale golden with a soft metallic sheen across the flanks. Depending on maturity and environmental conditions, individuals may display subtle green, blue, or bronze iridescence under natural or full-spectrum lighting. A faint lateral stripe and a small humeral marking may be visible, while the transparent fins contribute to the species' refined and understated appearance. Colour intensity and reflective qualities improve progressively with maturity, balanced nutrition, and stable water conditions.\u003c\/p\u003e\n\u003cp data-start=\"1042\" data-end=\"1533\"\u003eBehaviour is peaceful, active, and strongly schooling-oriented. Individuals exhibit synchronized midwater swimming and develop stable social dynamics when maintained in appropriate shoals. Their calm disposition makes them highly compatible with other peaceful freshwater species, while their subtle coloration creates an elegant display in well-planted aquaria. As with many \u003cem data-start=\"1418\" data-end=\"1434\"\u003eHyphessobrycon\u003c\/em\u003e species, confidence and natural behaviour increase significantly when maintained in larger groups.\u003c\/p\u003e\n\u003cp data-start=\"1535\" data-end=\"1937\"\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 behavioural consistency, colour stability, and aquarium suitability rather than wild ecological function or conservation deployment.\u003c\/p\u003e\n\u003chr data-start=\"1939\" data-end=\"1942\"\u003e\n\u003ch2 data-section-id=\"11rof5t\" data-start=\"1944\" data-end=\"1969\"\u003eSystem \u0026amp; Rearing Notes\u003c\/h2\u003e\n\u003cp data-start=\"1971\" data-end=\"2614\"\u003e\u003cstrong data-start=\"1971\" data-end=\"1982\"\u003eOrigin:\u003c\/strong\u003e In-house, Nero Labs\u003cbr data-start=\"2002\" data-end=\"2005\"\u003e\u003cstrong data-start=\"2005\" data-end=\"2029\"\u003eRearing environment:\u003c\/strong\u003e Controlled, closed system\u003cbr data-start=\"2055\" data-end=\"2058\"\u003e\u003cstrong data-start=\"2058\" data-end=\"2074\"\u003eLine status:\u003c\/strong\u003e Selectively maintained ornamental characin\u003cbr data-start=\"2117\" data-end=\"2120\"\u003e\u003cstrong data-start=\"2120\" data-end=\"2134\"\u003eBehaviour:\u003c\/strong\u003e Peaceful, active, schooling\u003cbr data-start=\"2162\" data-end=\"2165\"\u003e\u003cstrong data-start=\"2165\" data-end=\"2186\"\u003eSwimming profile:\u003c\/strong\u003e Midwater, synchronized open-water movement\u003cbr data-start=\"2229\" data-end=\"2232\"\u003e\u003cstrong data-start=\"2232\" data-end=\"2254\"\u003eFeeding behaviour:\u003c\/strong\u003e Omnivorous; accepts prepared, frozen, and live feeds\u003cbr data-start=\"2307\" data-end=\"2310\"\u003e\u003cstrong data-start=\"2310\" data-end=\"2333\"\u003eHabitat preference:\u003c\/strong\u003e Planted aquaria with open swimming areas, gentle water movement, and subdued lighting\u003cbr data-start=\"2419\" data-end=\"2422\"\u003e\u003cstrong data-start=\"2422\" data-end=\"2445\"\u003eColour development:\u003c\/strong\u003e Progressive; metallic sheen and subtle iridescence intensify with maturity and environmental stability\u003cbr data-start=\"2548\" data-end=\"2551\"\u003e\u003cstrong data-start=\"2551\" data-end=\"2572\"\u003eSocial structure:\u003c\/strong\u003e Group-oriented; best maintained in shoals\u003c\/p\u003e\n\u003cp data-start=\"2616\" data-end=\"2802\"\u003eMinor variation in body tone, iridescent highlights, and lateral markings may occur between individuals and reflects normal biological diversity within maintained ornamental populations.\u003c\/p\u003e\n\u003chr data-start=\"2804\" data-end=\"2807\"\u003e\n\u003ch2 data-section-id=\"6x8g29\" data-start=\"2809\" data-end=\"2830\"\u003eAvailability \u0026amp; Use\u003c\/h2\u003e\n\u003cp data-start=\"2832\" data-end=\"3064\"\u003eAvailability of Costae Tetras is cycle-dependent and determined by biological readiness rather than inventory-driven targets. This species is suitable for beginner to advanced aquarists seeking a peaceful and elegant schooling fish.\u003c\/p\u003e\n\u003cp data-start=\"3066\" data-end=\"3284\"\u003eBest suited for planted community aquaria, South American-inspired freshwater systems, and mixed-species displays emphasizing natural schooling behaviour, subtle metallic colouration, and harmonious community dynamics.\u003c\/p\u003e\n\u003chr data-start=\"3286\" data-end=\"3289\"\u003e\n\u003ch2 data-section-id=\"1x5xxf7\" data-start=\"3291\" data-end=\"3308\"\u003eImportant Note\u003c\/h2\u003e\n\u003cp data-start=\"3310\" data-end=\"3567\"\u003eCostae Tetras should be maintained in groups to support natural schooling behaviour and reduce stress. Stable water quality, subdued lighting, and densely planted surroundings help maximize their natural iridescence and encourage confident social behaviour.\u003c\/p\u003e\n\u003chr data-start=\"3569\" data-end=\"3572\"\u003e\n\u003ch2 data-section-id=\"dll0ca\" data-start=\"3574\" data-end=\"3606\"\u003eEthical \u0026amp; Operational Context\u003c\/h2\u003e\n\u003cp data-start=\"3608\" data-end=\"3908\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eDistribution of Costae Tetras through Nero Labs prioritizes organism welfare, lineage integrity, and responsible propagation of ornamental schooling species. Proceeds support refinement of characin husbandry protocols, behavioural observation programs, and applied ornamental aquaculture initiatives.\u003c\/p\u003e","brand":"The Nero Labs Store","offers":[{"title":"Default Title","offer_id":43900068233294,"sku":null,"price":250.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/5309\/7550\/files\/Costea_Tetra.png?v=1782983725","url":"https:\/\/shop.nerolabs.org\/products\/costae-tetra","provider":"The Nero Labs Store","version":"1.0","type":"link"}