WIO Nano Rocks - Darwin Black Lava

WIO Darwin Black Lava Nano Stone brings jet-black volcanic drama, exceptional porosity, and striking plant contrast to nano scale — a highly textured igneous volcanic stone with crevices and irregular forms, perfectly sized for nano compositions where dark backdrop and plant support are the priority.

Darwin Black Lava Nano Stone carries the same inert, highly porous character as the full-size Darwin Black Lava Stone — a rich volcanic rock whose porous surface is ideal for beneficial bacteria colonization, epiphytic plant attachment, and moss growth. Its jet-black color provides a dramatic backdrop that makes green plants and mosses pop with vivid intensity. The rough texture also gives it excellent water retention, making it an exceptional choice for humid terrariums and paludariums.

Sized between 3 and 10 cm, ideal for nano tanks under 40L. Fully inert — does not affect water hardness. Pre-washed and ready to use.

Key Points

• Color: Jet-black
• Nano Scale: Sized 3–10 cm, ideal for tanks under 40L / 10 gal
• Highly Porous: Ideal support for mosses, epiphytes, and beneficial bacteria
• High Contrast: Jet-black backdrop makes green plants and mosses pop
• Pre-Washed: Clean and ready to use, no soaking required
• Water Chemistry: Inert — does not affect water hardness
• Versatile Use: Ideal for aquariums, terrariums, paludariums, and humid vivariums
• Safe for fish, shrimp, and sensitive species

Characteristics

• Type: Igneous volcanic stone
• Color: Jet-black
• Texture: Highly textured with crevices and irregular forms
• Stone size: 3–10 cm
• Water Hardness: Inert — does not affect water hardness

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 as dark anchors and backdrops; press moss or epiphytes into crevices for a living patina
• Place over substrate or WIO LandForms — avoid direct contact with glass
• Use WIO ScapeBound to secure if needed
• Excellent paired with driftwood for Ryoboku-style nano layouts
• 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.