Black Ryuoh Nano Stone is the miniature version of one of the most iconic aquascaping stones-prized for its powerful aesthetics and dramatic mineral veining. With deep graphite-black tones and bright white lines, each stone is a sculptural piece that enhances depth, tension, and definition in aquascapes under 40 L.

Its rugged texture and raw edges evoke ancient mountain ridges or shadowy ravines, making it ideal for strong Iwagumi compositions, layered cliffscapes, or as bold accents alongside wood and plants. Sized between 3 and 10 cm, these nano stones offer precision and presence in any small-scale design.

Each piece is 100% natural, pre-washed, and safe for all aquatic and terrestrial life. Whether you're working on a nano aquarium, terrarium, or paludarium, Black Ryuoh Nano Stone delivers sculptural strength in miniature form.

• Key Points

  • Color: Deep graphite-black tones with vivid white quartz veins
  • Nano Scale: Sized ≈ 3–10 cm, ideal for tanks under 40 L / 10 gal.
  • Iwagumi-Ready: Bold texture and edges for minimalistic power layouts
  • Dramatic Contrast: High visual tension in compact spaces
  • Pre-Washed: Clean and ready to use, no soaking required
  • Raw Texture: Rugged, jagged surfaces for realism
  • Safe: Safe for fish, shrimp, and sensitive species
  • Water Chemistry: Calcareous-may raise pH and hardness over time
  • Versatile Use: Perfect for aquariums, terrariums, paludariums, and bowls
  • Packaging: 2 kg(4.4lbs) bag with mixed-size stones
  • Pairing Tip: Combine with smooth stones or wood for high contrast scenes. For natural stone transitions and intricate details, including stone slides, add WIO Accents Dark Grey Chips.

• Usage

  • Preparation
    – Rinse briefly to remove any transport dust.
    – No soaking required-pre-washed and dust-free.
    
     
  • Placement Tips
    – Start with larger stones, then layer smaller ones for depth.
    – Place over substrate-avoid direct contact with bare glass.
    – Leave space from glass walls for easier maintenance.
    – Use WIO ScapeGlue and FuseColor for stability and cohesion.
    – Always check stability of stacked stones in livestock tanks.
    
     
  • Layout Ideas
    – Iwagumi-style layouts with strong shadows and contrast.
    – Combine with moss or fine-leaved plants for visual relief.
    – Use as accent stones to enhance terrain definition.
    
     
  • Maintenance Idea
    – During cleaning, gently use WIO cleaning tools to lift any debris from stone surfaces.
    – Control any alterations in pH and kH by regular water changes with osmotic or soft water, or by using WIO water treatments.

   

  Notes
  – Each bag contains a unique mix-expect natural variation in shape, color, and texture.

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.