WIO Black Venom Nano Stone brings striking pitch-black drama, high contrast, and a maze-like glazed texture to nano scale — a vibrant igneous stone that transitions from dark grey when dry to vibrant pitch-black when submerged, perfectly sized for Iwagumi nano compositions and any layout seeking bold, dark impact.

Black Venom Nano Stone carries the same jagged, glazed character as the full-size Black Venom Stone — its maze-like texture creating an intriguing visual element that magnifies the green of plants and mosses with exceptional contrast. Even at nano scale the color transformation from dry to wet creates a dynamic, ever-changing visual element. Ideal for high-impact Iwagumi layouts and any nano design that requires a bold, dramatic focal point.

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

Key Points

• Color: Dark grey dry; vibrant pitch-black when submerged
• Nano Scale: Sized 3–10 cm, ideal for tanks under 40L / 10 gal
• Jagged Glazed Texture: Angular forms with maze-like surface
• High Impact: Stunning contrast with green plants and pale substrates
• Pre-Washed: Clean and ready to use, no soaking required
• Water Chemistry: May raise pH and hardness slightly
• Versatile Use: Ideal for aquariums, terrariums, and paludariums
• Safe for fish, shrimp, and amphibians
• Pairing Tip: Combine with Heaven Sand for striking pale contrast

Characteristics

• Type: Igneous stone
• Color: Dark grey dry; vibrant pitch-black underwater
• Texture: Jagged with glazed maze-like surface
• Stone size: 3–10 cm
• Water Hardness: May raise pH and hardness slightly; 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 angular piece as the dark focal anchor; surround with supporting stones
• 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.