The Rivulet River Kit is a carefully balanced and visually stunning biotope inspired by the unique ecosystem of Yakushima Island in Japan — a UNESCO World Heritage Site renowned for its ancient cedar forests, crystal-clear mountain streams, and breathtaking natural beauty. Ideal for creating a pleasant, harmonious, and calming biotope environment.
At the heart of the Rivulet kit is the Elderly Stone — one of WIO's most sought-after stones, revered for its distinctive "cracking" pattern and rugged texture that resembles ice or snow, evoking the ancient weathered boulders of Yakushima's mountain streams. The kit includes a full range of Elderly Stone sizes from XL down to small, alongside a 2 kg bag of Elderly Nano Rocks that bring the same unique cracked character to the foreground for fine detail and natural depth. The warm Artist Mustard plant substrate — a 5 kg nutrient-rich growing medium — provides a natural golden-earthy foundation that harmonizes beautifully with Elderly Stone's cool grey-brown tones, while the Rivulet Biotope Beds add authentic fine substrate texture.
The result is a serene, wabi-sabi landscape that radiates ancient calm — perfect for Japanese biotopes, mountain stream scapes, or any layout seeking timeless natural character and a contemplative atmosphere.
One Universal River Kit. Infinite Aquascapes.
Your WIO River Kit is the ultimate canvas for global aquatic artistry. Designed as a Universal Base, it distills the raw beauty and soul of rivers, lakes, and streams worldwide — so you can create with freedom, not limits. Craft a stunning aquascape or transform it into a lush biotope with region-specific flora, fauna, and botanicals. It's that simple. Just boundless creativity.
Dream aquascapes or wild biotopes — achieving them has never been this simple, this versatile, this uniquely WIO.
Kit Contents (Mega Box)
Key Points
*Pieces, colours, sizes and shapes of stones may vary. Plants not included.
Available from Cuboid Nature Aquarium — Authorized Retailer for WIO.
Inventory Accuracy
If this item is at low stock, or you are ordering all or almost all of our current inventory, there may be an inventory discrepency. We will contact you about any issues as soon as possible.
Order Processing
Please allow 24 to
48 hrs to process your order. Expect an
email within 48 hrs to let you know your order is on your way.
Store Pickup
If you choose “Pickup
in Store” at checkout, an email will be sent when your order is ready for
pickup. Orders can be picked up during
store hours, see our home page for our current hours. The pick up address is 6637 Easton Rd,
Pipersville, PA 18947
Domestic Shipping Rates
Shipping charges, if
any, for your order will be calculated and displayed at checkout.
