{"product_id":"red-devil-borneo-hillstream-loach-gastromyzon-russulus-super-rare","title":"Red Devil Borneo Hillstream Loach（Gastromyzon Russulus）（SUPER RARE!!!)","description":"\u003ch2\u003eRed Devil Borneo Hillstream Loach — The Rarest of the Rare\u003c\/h2\u003e\n\u003cp\u003eFierce in name, stunning in appearance, and extraordinarily rare in the trade, the \u003cstrong\u003eRed Devil Borneo Hillstream Loach (\u003cem\u003eGastromyzon russulus\u003c\/em\u003e)\u003c\/strong\u003e is the crown jewel of the hillstream loach world. Endemic to the pristine, fast-flowing hill streams of Borneo, this exceptional species is distinguished by its vivid reddish-orange suffusion and intricate body patterning — a combination that makes it one of the most visually dramatic and sought-after loaches in existence.\u003c\/p\u003e\n\n\u003cp\u003eLike all \u003cem\u003eGastromyzon\u003c\/em\u003e species, the Red Devil has evolved a perfectly flattened, hydrodynamic body with a powerful sucker-like underside, allowing it to cling effortlessly to rocks in powerful river currents. In the aquarium, it glides across glass and rockwork with an almost supernatural grace — a living masterpiece of evolutionary design.\u003c\/p\u003e\n\n\u003ch3\u003eCare at a Glance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommon Name:\u003c\/strong\u003e Red Devil Borneo Hillstream Loach\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eScientific Name:\u003c\/strong\u003e \u003cem\u003eGastromyzon russulus\u003c\/em\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Borneo (pristine, fast-flowing hill streams)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdult Size:\u003c\/strong\u003e 2.5 – 3.8 cm (1 – 1.5 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003epH:\u003c\/strong\u003e 6.6 – 7.5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGeneral Hardness (GH):\u003c\/strong\u003e 6 – 12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarbonate Hardness (KH):\u003c\/strong\u003e 1 – 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTDS:\u003c\/strong\u003e 100 – 300\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e 22 – 24°C (68 – 75°F) — cool, highly oxygenated water is non-negotiable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperament:\u003c\/strong\u003e Peaceful herbivore; non-aggressive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDifficulty:\u003c\/strong\u003e Easy to Moderate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShrimp Safe:\u003c\/strong\u003e ✅ 100% shrimp safe!\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTank \u0026amp; Setup Tips\u003c\/h3\u003e\n\u003cp\u003eThe Red Devil Hillstream Loach demands \u003cstrong\u003eexceptional water quality, strong flow, and high oxygenation\u003c\/strong\u003e — conditions that mirror the fast-moving, crystal-clear hill streams of Borneo. A powerful canister filter, powerhead, or wavemaker is essential. Temperature must be maintained cool (22–24°C); warm or stagnant water is fatal to this species.\u003c\/p\u003e\n\n\u003cp\u003eAquascape with smooth river rocks, slate, and pebbles to provide abundant grazing surfaces and resting spots. A mature, well-established tank with natural algae and biofilm growth is strongly recommended before introducing this rare species. This is a fish that rewards the prepared and dedicated aquarist.\u003c\/p\u003e\n\n\u003ch3\u003eFeeding\u003c\/h3\u003e\n\u003cp\u003eA specialist herbivorous grazer. Feeds primarily on \u003cstrong\u003ealgae, biofilm, and aufwuchs\u003c\/strong\u003e growing on hard surfaces. Supplement with blanched vegetables (zucchini, cucumber, spinach), algae wafers, and spirulina-based sinking foods. A mature tank with well-established algae and biofilm growth is critical — do not introduce this species to a new or uncycled aquarium.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Tank Mates\u003c\/h3\u003e\n\u003cp\u003eCompletely peaceful and 100% shrimp safe. Ideal companions include small, peaceful nano fish (ember tetras, chili rasboras, small danios), other hillstream loach species, and dwarf shrimp. Avoid large, boisterous, or aggressive fish that may stress this rare and sensitive species.\u003c\/p\u003e\n\n\u003ch3\u003eBreeding\u003c\/h3\u003e\n\u003cp\u003eBreeding in captivity is considered very difficult and rarely documented. Replicating the precise conditions of their native Bornean hill streams — strong flow, cool temperatures, high oxygenation, and pristine water quality — is required for any breeding attempt. A true achievement for the specialist aquarist.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e📸 Photos are for reference only. Actual fish may vary slightly in colour and pattern — each one is uniquely beautiful!\u003c\/em\u003e\u003c\/p\u003e","brand":"Aquapets ( KowloonAquarium)","offers":[{"title":"Default Title","offer_id":53539024535825,"sku":null,"price":120.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/9225\/6785\/files\/679352233_894236980307106_8872761363003061219_n.jpg?v=1778565500","url":"https:\/\/www.aquapets.ca\/products\/red-devil-borneo-hillstream-loach-gastromyzon-russulus-super-rare","provider":"Aquapets ( KowloonAquarium)","version":"1.0","type":"link"}