WIO Nano Rocks - Grey Fossil Wood

WIO Grey Fossil Stone Nano Rock brings rare metallic elegance, glittering depth, and sophisticated monolithic forms to nano scale — a highly metamorphic rock with bands of blocky crystals and a striking metallic grey surface that creates remarkable contrast with plants, perfectly sized for nano compositions.

Grey Fossil Stone Nano Rock carries the same sophisticated character as the full-size Grey Fossil Stone — a gneiss metamorphic rock containing bands of blocky crystals like feldspar alternated with flat, plate-like mica minerals representing some of the most advanced stages of metamorphosis. Its metallic grey surface has a distinctive glittering effect that catches aquarium lighting beautifully, creating an ever-changing visual display. Even at nano scale, the monolithic forms create an excellent sense of depth and high impact.

Sized between 3 and 10 cm, ideal for nano tanks under 40L. May slightly raise pH and water hardness; regular water changes keep hardness under control. Pre-washed and ready to use.

Key Points

• Color: Metallic grey with glittering effect
• Nano Scale: Sized 3–10 cm, ideal for tanks under 40L / 10 gal
• Monolithic Forms: Sophisticated shapes create instant depth and impact
• High Contrast: Glittering metallic surface creates remarkable contrast with plants
• Pre-Washed: Clean and ready to use, no soaking required
• Water Chemistry: May slightly raise pH and hardness
• Versatile Use: Ideal for aquariums, terrariums, and paludariums
• Safe for fish, shrimp, and sensitive species

Characteristics

• Type: Metamorphic rock (gneiss)
• Color: Metallic grey
• Texture: Highly textured monolithic forms with bands of blocky crystals
• Stone size: 3–10 cm
• Water Hardness: May slightly raise pH and hardness; regular water changes maintain stability

Availability at Cuboid Nature Aquarium

• 2 kg Bag: Assorted mix of stones, 3–10 cm

Usage

• Rinse briefly before use to remove any transport dust — pre-washed and ready for direct placement
• Use the most sculptural tower-shaped piece as the focal anchor; surround with supporting pieces at varying heights
• Place over substrate or WIO LandForms — avoid direct contact with glass
• Use WIO ScapeBound to secure if stacking or layering
• Control any alterations in pH and kH by regular water changes with osmotic or soft water
• Safe for fish, shrimps, and other aquatic animals

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.