{"product_id":"rotkeil-severum","title":"Rotkeli Severum | Fry | 2-3 cm | Price Per Fish ₹250","description":"\u003ch1\u003e🐠 Rotkeil Severum – Premium South American Cichlid\u003c\/h1\u003e\n\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cem\u003eHeros sp. “Rotkeil”\u003c\/em\u003e | Elegant red-shoulder Severum fry with premium growth potential\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eBring elegance, intelligence, and premium South American cichlid beauty to your aquarium with \u003cstrong\u003eRotkeil Severums\u003c\/strong\u003e — a highly sought-after Severum variant admired for its graceful body shape, calm demeanor, and distinctive red-orange shoulder coloration that intensifies with maturity.\u003c\/p\u003e\n\u003cp\u003eThese fish are especially valued by advanced hobbyists for their refined appearance and impressive adult display potential.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e✨ Why aquarists love Rotkeil Severums\u003c\/h2\u003e\n\u003cp\u003e✔️ \u003cstrong\u003eBeautiful red-shoulder coloration\u003c\/strong\u003e — develops stronger with age\u003cbr\u003e✔️ \u003cstrong\u003eElegant discus-like body shape\u003c\/strong\u003e — graceful swimming movement\u003cbr\u003e✔️ \u003cstrong\u003ePeaceful large cichlid temperament\u003c\/strong\u003e — calmer than many aggressive species\u003cbr\u003e✔️ \u003cstrong\u003eHighly intelligent fish\u003c\/strong\u003e — interactive and responsive behavior\u003cbr\u003e✔️ \u003cstrong\u003ePremium South American centerpiece species\u003c\/strong\u003e — visually striking adults\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🌍 About the species\u003c\/h2\u003e\n\u003cp\u003eRotkeil Severums are premium variants within the \u003cem\u003eHeros\u003c\/em\u003e genus and are highly appreciated for their developing red-orange shoulder markings and elegant body structure.\u003c\/p\u003e\n\u003cp\u003eThese fish are known for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMetallic green-gold base coloration\u003c\/li\u003e\n\u003cli\u003eRed-orange shoulder development\u003c\/li\u003e\n\u003cli\u003eCalm gliding swimming behavior\u003c\/li\u003e\n\u003cli\u003eIntelligent environmental interaction\u003c\/li\u003e\n\u003cli\u003eStrong growth potential into large display fish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAs they mature, coloration becomes deeper and more pronounced under proper care and nutrition.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🏡 Ideal aquarium setup\u003c\/h2\u003e\n\u003cp\u003eRotkeil Severums thrive best in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge tropical aquariums\u003c\/li\u003e\n\u003cli\u003eSouth American cichlid setups\u003c\/li\u003e\n\u003cli\u003eWarm stable water conditions\u003c\/li\u003e\n\u003cli\u003eSpacious swimming environments\u003c\/li\u003e\n\u003cli\u003eModerate natural décor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRecommended setup:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e250 liters or larger for adults\u003c\/li\u003e\n\u003cli\u003eStrong biological filtration\u003c\/li\u003e\n\u003cli\u003eDriftwood and open swimming zones\u003c\/li\u003e\n\u003cli\u003eStable warm tropical parameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e⚠️ Compatibility notes\u003c\/h2\u003e\n\u003cp\u003eRotkeil Severums are relatively peaceful large cichlids but may become territorial as they mature.\u003c\/p\u003e\n\u003cp\u003eNot ideal with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTiny nano fish\u003c\/li\u003e\n\u003cli\u003eExtremely aggressive cichlids\u003c\/li\u003e\n\u003cli\u003eFin-nipping species\u003c\/li\u003e\n\u003cli\u003eOvercrowded aquariums\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBest suited for:\u003c\/p\u003e\n\u003cp\u003e✔️ South American cichlid communities\u003cbr\u003e✔️ Large peaceful tropical setups\u003cbr\u003e✔️ Monster fish grow-out systems\u003cbr\u003e✔️ Premium centerpiece 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-absorbing 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\u003eInstant Refund for DoAs in accordance with our Refund Policy.\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 premium South American cichlids\u003cbr\u003e✔️ You enjoy growing fry into large display fish\u003cbr\u003e✔️ You prefer elegant intelligent species over aggressive predators\u003cbr\u003e✔️ You are building a spacious centerpiece aquarium\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e⚠️ Not ideal if:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eYour aquarium is small\u003c\/li\u003e\n\u003cli\u003eYou keep tiny delicate community fish\u003c\/li\u003e\n\u003cli\u003eYou prefer ultra-aggressive cichlids\u003c\/li\u003e\n\u003cli\u003eYour setup lacks filtration and long-term grow-out space\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 stability and health over bulk-volume movement.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e👉 Grow a premium centerpiece for your aquarium\u003c\/h2\u003e\n\u003cp\u003eExperience the elegance and long-term beauty of \u003cstrong\u003eRotkeil Severums\u003c\/strong\u003e from Nero Labs.\u003c\/p\u003e\n\u003ch2\u003eRotkeil Severum \u003cem\u003e(\u003c\/em\u003e\u003cem\u003eHeros efasciatus\u003c\/em\u003e\u003cem\u003e)\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cem\u003eHeros efasciatus\u003c\/em\u003e, commonly referred to as the Rotkeil or Red-shoulder Severum, offered by Nero Labs is a selectively maintained ornamental cichlid lineage reared under controlled, closed-system conditions. This species is recognized for its laterally compressed body form, calm disposition, and characteristic red to orange pigmentation along the opercular and shoulder regions.\u003c\/p\u003e\n\u003cp\u003eSpecimens provided are \u003cstrong\u003elab-reared and system-acclimated\u003c\/strong\u003e, allowing for reduced developmental stress and improved stability during transition to established aquaria. Colour expression in this lineage develops progressively, with red pigmentation intensifying with age, nutritional consistency, and stable environmental parameters.\u003c\/p\u003e\n\u003cp\u003eWhile \u003cem\u003eHeros efasciatus\u003c\/em\u003e originates from South American river systems, the individuals distributed by Nero Labs represent \u003cstrong\u003edomesticated ornamental stock\u003c\/strong\u003e, refined for predictability and long-term performance in captive environments rather than wild ecological function.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eSystem \u0026amp; Rearing Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e In-house, Nero Labs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRearing environment:\u003c\/strong\u003e Controlled, closed system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLine status:\u003c\/strong\u003e Selectively maintained ornamental lineage\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBehaviour:\u003c\/strong\u003e Generally peaceful to moderately territorial; compatible with structured community or semi-aggressive systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eColour development:\u003c\/strong\u003e Gradual; red shoulder pigmentation strengthens with maturity and stable husbandry\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eVariations in colour intensity, facial markings, and body proportions may occur between individuals and reflect normal biological diversity within maintained ornamental lines.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eAvailability \u0026amp; Use\u003c\/h3\u003e\n\u003cp\u003eAvailability of \u003cem\u003eHeros efasciatus\u003c\/em\u003e is \u003cstrong\u003ecycle-dependent\u003c\/strong\u003e and aligned with biological readiness rather than commercial stock targets. These organisms are recommended for aquarists capable of maintaining \u003cstrong\u003estable water chemistry, adequate tank volume, and appropriate social structuring\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWell suited for ornamental display aquaria, biotope-inspired systems, and mixed South American cichlid setups under controlled conditions.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eImportant Note\u003c\/h3\u003e\n\u003cp\u003eAs with other ornamental cichlids, behavioural expression—including territoriality, social hierarchy, and breeding activity—may vary between individuals. Nero Labs does not distribute this lineage for conservation or rewilding purposes and offers it strictly within the ornamental aquaculture domain.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEthical \u0026amp; Operational Context\u003c\/h3\u003e\n\u003cp\u003eCommercial distribution of \u003cem\u003eHeros efasciatus\u003c\/em\u003e prioritizes \u003cstrong\u003eorganism welfare, system reliability, and lineage integrity\u003c\/strong\u003e. Proceeds from availability directly support ongoing system optimization, controlled breeding refinement, and applied ornamental aquaculture research at Nero Labs.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"The Nero Labs Store","offers":[{"title":"Default Title","offer_id":43406250639438,"sku":null,"price":250.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/5309\/7550\/files\/Rotkeli_Severum.png?v=1782992094","url":"https:\/\/shop.nerolabs.org\/products\/rotkeil-severum","provider":"The Nero Labs Store","version":"1.0","type":"link"}