{"product_id":"wio-boulder-ryuoh-seiryu-boulder","title":"WIO Boulder - Ryuoh(Seiryu) Boulder","description":"\u003cp\u003eA WIO first: the rounded expression of the iconic Ryuoh. Ryuoh Boulder brings the mountain DNA — deep greys and pale mineral veins — in water-shaped form, so you can compose with softness and flow. The result is a stone that reads calm and timeless, perfect for Iwagumi minimalism and convincingly natural river and stream biotopes.\u003c\/p\u003e\n\u003cp\u003eWhere classic Ryuoh cuts sharp ridges, Ryuoh Boulders are water-shaped: rounded silhouettes, softened seams, and quiet veining that glows under light. Drop a single piece in pale sand and the scene exhales; group a kit and you get meanders, bars, and eddies that feel discovered rather than arranged. Side light draws silvery highlights along the arcs; top light settles everything into a serene, mist-grey hush.\u003c\/p\u003e\n\u003cp\u003eLet \"current\" lead the composition. Seat one main boulder slightly off-axis to set direction, then nest smaller pieces downstream to create natural banks and resting pockets. Half-bury a few to suggest sorting; leave negative corridors where water would move. For seamless scale transitions, veil the bases with \u003cstrong\u003eWIO Accents Grey Chips\u003c\/strong\u003e, and echo the language with classic Ryuoh Stones for subtle ridge contrasts that frame the rounded masses.\u003c\/p\u003e\n\u003cp\u003eThe contours are livestock-friendly; crevices invite moss and epiphytes — use \u003cstrong\u003eWIO PlantGlue\u003c\/strong\u003e for quick establishment. As a calcareous limestone, Ryuoh Boulders may gently nudge pH and hardness over time; routine water changes or buffering keep parameters steady.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Points\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRounded, water-shaped expression of the iconic Ryuoh — deep grey with pale mineral veins\u003c\/li\u003e\n\u003cli\u003eIdeal for river biotopes, stream scapes, and Iwagumi minimalism\u003c\/li\u003e\n\u003cli\u003eSmooth silhouettes create natural-looking banks, meanders, and eddies\u003c\/li\u003e\n\u003cli\u003ePairs with classic Ryuoh Stones and WIO Accents Grey Chips\u003c\/li\u003e\n\u003cli\u003eCalcareous — may gently raise pH and hardness over time\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCharacteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Calcareous limestone (rounded\/tumbled form)\u003c\/li\u003e\n\u003cli\u003eColor: Deep grey with pale white mineral veins\u003c\/li\u003e\n\u003cli\u003eTexture: Smooth, rounded, water-shaped surfaces with softened seams\u003c\/li\u003e\n\u003cli\u003eStone size: Mix sizes from 5 to 30 cm\u003c\/li\u003e\n\u003cli\u003eWater Hardness: Calcareous — may gently raise pH and hardness over time; regular water changes maintain stability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAvailability at Cuboid Nature Aquarium\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNano Box — 5 kg (11 lb):\u003c\/strong\u003e WIO's curated size mix, hand-selected assortment of stones from 5 to 30 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox — 11 kg (24 lb):\u003c\/strong\u003e WIO's curated size mix, hand-selected assortment of stones from 5 to 30 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn-Store:\u003c\/strong\u003e Visit us in Pipersville, PA to hand-pick individual stones by the pound — choose exactly the pieces and sizes you want for your layout\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUsage\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSuitable for both aquatic and terrarium environments\u003c\/li\u003e\n\u003cli\u003eRinse rocks and stones with water before use; use a brush to clean before introducing to the aquarium\u003c\/li\u003e\n\u003cli\u003eAvoid placing rocks directly on the glass — place substrate or WIO LandForms beneath the hardscape first\u003c\/li\u003e\n\u003cli\u003eAlways secure stones, especially when stacking; use WIO ScapeBound to prevent movement during maintenance\u003c\/li\u003e\n\u003cli\u003ePosition stones a few centimeters\/inches away from aquarium glass walls to facilitate maintenance\u003c\/li\u003e\n\u003cli\u003eControl any alterations in pH and kH by regular water changes with osmotic or soft water, or by using a water softener if necessary\u003c\/li\u003e\n\u003cli\u003eSafe for fish, shrimps, and other aquatic animals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eAvailable from Cuboid Nature Aquarium — Authorized Retailer for WIO.\u003c\/em\u003e\u003c\/p\u003e","brand":"WIO","offers":[{"title":"5kg(11lb)","offer_id":52185002836279,"sku":"44158","price":38.0,"currency_code":"USD","in_stock":false},{"title":"11 kg(24lb)","offer_id":51218582077751,"sku":"44159","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/8748\/1655\/files\/5f6902_3a8768ca06a7416aaab8ccf0df488112_mv2.avif?v=1760571474","url":"https:\/\/cuboidstore.com\/products\/wio-boulder-ryuoh-seiryu-boulder","provider":"Cuboid Aquatics LLC","version":"1.0","type":"link"}