{"product_id":"spotted-butterfly-loach","title":"Spotted Butterfly Loach","description":"\u003ch2 style=\"font-family:Georgia,serif;font-size:1.4em;font-weight:normal;letter-spacing:0.08em;color:#0a2a3a;border-bottom:2px solid #3a7ca5;padding-bottom:8px;margin-bottom:18px;text-transform:uppercase;\"\u003eSpotted Butterfly Loach\u003c\/h2\u003e\u003cp style=\"font-family:Georgia,serif;font-size:1.05em;line-height:1.8;margin-bottom:16px;color:#2c2c2c;\"\u003e\u003cstrong\u003eSpotted Butterfly Loach\u003c\/strong\u003e (\u003cem\u003eSewellia sp. \"SEW 01\"\u003c\/em\u003e) is an undescribed Sewellia species traded as 'SEW 01' — a collecting code that designates an unconfirmed locality form. The body displays a spotted pattern distinct from the reticulated lines of \u003cem\u003eS. lineolata\u003c\/em\u003e. Collector interest is high due to its undescribed status. Sewellia hillstream loaches share the same extraordinarily flattened body, suction-cup fins, and algae-grazing lifestyle as all hillstream loaches. The genus is native to fast-flowing streams of Vietnam and southern China and is highly regarded among hillstream loach enthusiasts.\u003c\/p\u003e\u003cp style=\"font-family:Georgia,serif;font-size:1.05em;line-height:1.8;margin-bottom:16px;background-color:#e0f0f8;border:1px solid #b0d0e8;padding:14px 18px;color:#0a2a3a;\"\u003e\u003cstrong\u003eFeeding \u0026amp; Care Tip:\u003c\/strong\u003e \u003cstrong\u003eLive algae and biofilm\u003c\/strong\u003e growing on rocks and glass are the primary food source — see the algae requirement note above. Supplement with \u003cstrong\u003eHikari Mini Algae Wafers\u003c\/strong\u003e placed directly on rocks and blanched zucchini or spinach. \u003cstrong\u003eHikari Frozen or Freeze-Dried Baby Brine Shrimp\u003c\/strong\u003e can be offered very sparingly as an occasional protein supplement. Strong water flow and high oxygenation are as important as food for these fish.\u003c\/p\u003e\u003cp style=\"font-family:Georgia,serif;font-size:1.05em;line-height:1.8;margin-bottom:16px;background-color:#fce4d6;border:1px solid #f4b183;padding:14px 18px;color:#7b2000;\"\u003e\u003cstrong\u003e⚠ Algae \u0026amp; Biofilm Requirement:\u003c\/strong\u003e Like Otocinclus catfish and Stiphodon gobies, hillstream loaches and Borneo suckers are specialized algae and biofilm grazers. \u003cstrong\u003eThey cannot survive without established live algae and biofilm growing on rocks, glass, and hardscape.\u003c\/strong\u003e A tank without significant algae growth will not support these fish regardless of supplemental feeding. Allow algae to establish thoroughly before adding hillstream loaches. Hikari Mini Algae Wafers placed directly on rocks and blanched vegetables supplement but do not replace live algae and biofilm growth.\u003c\/p\u003e\u003cp style=\"font-family:Georgia,serif;font-size:1.05em;line-height:1.8;margin-bottom:16px;color:#2c2c2c;\"\u003eNative to fast-flowing, clear, well-oxygenated mountain streams and rivers. The aquarium must replicate these conditions: strong filtration creating significant water movement, high oxygenation, rocky substrate and hardscape covered in established algae and biofilm, bright lighting to encourage algae growth, cool to moderate temperatures, and very clean water with low nitrates. These fish are sensitive to elevated nitrates and should never be added to immature aquariums.\u003c\/p\u003e\u003cp style=\"font-family:Georgia,serif;font-size:1.05em;line-height:1.8;margin-bottom:16px;color:#2c2c2c;\"\u003eKeep in groups of three or more. Males are territorial with each other but peaceful with other species. Strong flow, established algae and biofilm on rocks, and very clean water are essential.\u003c\/p\u003e\u003cp style=\"font-family:Georgia,serif;font-size:1.05em;line-height:1.8;margin-bottom:24px;color:#2c2c2c;\"\u003eSewellia species are among the most visually complex hillstream loaches available — the intricate body patterns reward close observation. In a well-set-up hillstream aquarium they are active, visible, and genuinely captivating.\u003c\/p\u003e\u003ch3 style=\"font-family:Georgia,serif;font-size:1.05em;font-weight:normal;letter-spacing:0.1em;text-transform:uppercase;color:#0a2a3a;border-top:1px solid #b0d0e8;padding-top:18px;margin-bottom:14px;\"\u003eCare \u0026amp; Ideal Parameters\u003c\/h3\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-family:Arial,Helvetica,sans-serif;font-size:0.92em;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#e0f0f8;color:#0a2a3a;font-weight:600;width:38%;border:1px solid #b0d0e8;\"\u003eDifficulty\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#e0f0f8;color:#2c2c2c;border:1px solid #b0d0e8;\"\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#ffffff;color:#0a2a3a;font-weight:600;width:38%;border:1px solid #b0d0e8;\"\u003eTemperament\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#ffffff;color:#2c2c2c;border:1px solid #b0d0e8;\"\u003ePeaceful — males territorial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#e0f0f8;color:#0a2a3a;font-weight:600;width:38%;border:1px solid #b0d0e8;\"\u003eTypical Adult Size\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#e0f0f8;color:#2c2c2c;border:1px solid #b0d0e8;\"\u003e2.5 inches (6.3 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#ffffff;color:#0a2a3a;font-weight:600;width:38%;border:1px solid #b0d0e8;\"\u003eMin. Group Size\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#ffffff;color:#2c2c2c;border:1px solid #b0d0e8;\"\u003e3 minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#e0f0f8;color:#0a2a3a;font-weight:600;width:38%;border:1px solid #b0d0e8;\"\u003eIdeal Temp\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#e0f0f8;color:#2c2c2c;border:1px solid #b0d0e8;\"\u003e64–75°F (18–24°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#ffffff;color:#0a2a3a;font-weight:600;width:38%;border:1px solid #b0d0e8;\"\u003eIdeal pH\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#ffffff;color:#2c2c2c;border:1px solid #b0d0e8;\"\u003e6.5–7.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#e0f0f8;color:#0a2a3a;font-weight:600;width:38%;border:1px solid #b0d0e8;\"\u003eIdeal GH\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#e0f0f8;color:#2c2c2c;border:1px solid #b0d0e8;\"\u003e4–12 dGH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#ffffff;color:#0a2a3a;font-weight:600;width:38%;border:1px solid #b0d0e8;\"\u003eIdeal KH\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#ffffff;color:#2c2c2c;border:1px solid #b0d0e8;\"\u003e2–8 dKH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#e0f0f8;color:#0a2a3a;font-weight:600;width:38%;border:1px solid #b0d0e8;\"\u003eStaple Food\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#e0f0f8;color:#2c2c2c;border:1px solid #b0d0e8;\"\u003eLive algae and biofilm; Hikari Mini Algae Wafers placed on rocks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#ffffff;color:#0a2a3a;font-weight:600;width:38%;border:1px solid #b0d0e8;\"\u003eTreat \/ Supplement\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#ffffff;color:#2c2c2c;border:1px solid #b0d0e8;\"\u003eBlanched zucchini; Hikari Frozen or Freeze-Dried Baby Brine Shrimp very sparingly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#e0f0f8;color:#0a2a3a;font-weight:600;width:38%;border:1px solid #b0d0e8;\"\u003eOrigin\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#e0f0f8;color:#2c2c2c;border:1px solid #b0d0e8;\"\u003eFast-flowing streams, Vietnam (exact locality unconfirmed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#ffffff;color:#0a2a3a;font-weight:600;width:38%;border:1px solid #b0d0e8; vertical-align:top;\"\u003eNotes\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;background-color:#ffffff;color:#2c2c2c;border:1px solid #b0d0e8;\"\u003eUndescribed — SEW 01 trade designation. Spotted pattern vs reticulated S. lineolata. Collector interest. Algae essential.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Cuboid Nature Aquarium","offers":[{"title":"Default Title","offer_id":48011225792823,"sku":"Sewellia sp. \"SEW 01\"","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/cuboidstore.com\/products\/spotted-butterfly-loach","provider":"Cuboid Aquatics LLC","version":"1.0","type":"link"}