• WIO - Black Venom Stone Mega Box Set 22kg Wood and Rock WIO
  • WIO - Black Venom Stone Mega Box Set 22kg Wood and Rock WIO
  • WIO - Black Venom Stone Mega Box Set 22kg Wood and Rock WIO
  • WIO - Black Venom Stone Wood and Rock WIO
  • WIO - Black Venom Stone Mega Box Set 22kg Wood and Rock WIO
  • WIO - Black Venom Stone Mega Box Set 22kg Wood and Rock WIO
  • WIO - Black Venom Stone Mega Box Set 22kg Wood and Rock WIO
  • WIO - Black Venom Stone Wood and Rock WIO
  • WIO - Black Venom Stone Wood and Rock WIO 4.4 lb Nano Bag
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WIO - Black Venom Stone

WIO - Black Venom Stone

WIO Black Venom Stone is a striking jet-black igneous rock with smooth glazed surfaces and intricate natural patterning that adds bold contrast and drama to any aquascape. Its deep coloration, maze-like textures, and sculptural forms enhance plants, wood, and shadows, creating powerful, high-impact layouts in both aquariums and terrariums.
Black Venom Stone
$9.95
$9.95
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Fast and free

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100% natural aquascaping rock

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24/7 support

Details

Color: Deep dark grey to intense pitch-black underwater, with a natural glazed finish that enhances contrast and sharp visual definition.

Stone Type: Hard igneous rock with naturally carved maze-like patterns and rugged angular formations.

Texture: Jagged, glossy surfaces with intricate micro-ridges that create dramatic shadows and depth.

Size Mix: 4"–6" (Nano) • 4"–15" (Mega), offering both centerpiece stones and versatile supporting pieces.

Matching: Excellent with Silver Shadow Nano Rocks, Heaven Sand, and Black Venom Nano Boulders for high-contrast cinematic layouts.

Results: Produces bold, modern aquascapes with powerful contrast, crisp structure, and rich visual layering.

Ready to Use: Rinse thoroughly before use; place on substrate or LandForms and secure stacked stones with ScapeBound.

Safety: May gently raise pH and hardness; fully safe for fish, shrimp, plants, reptiles, and terrarium species with standard water management.

Worry-Free: Inert once stabilized; hardener-free, CO₂-compatible, and aquarium safe.

Versatile: Ideal for Iwagumi, Ryoboku, dramatic mountain builds, and both aquatic and terrestrial layouts.

Packing: Available in Mega 46 lb, Nano 4.4 lb, and per-pound selections.

Origin: Responsibly sourced and refined in Europe using natural volcanic materials.

SHIPPING INFO

Fast and free shipping within the U.S. on orders over $49!

Worldwide free shipping on orders over $199!

FAQ

Water hardness: May raise pH and hardness slightly.
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  • Fast and free

  • 100% natural aquascaping rock

  • 24/7 support

  • Over 100,000 happy aquariums

Black Venom Stone Boxes – Your Ready-to-Build Hardscape Kits

Black Venom Stone is a dramatic, pitch-black igneous rock defined by its glossy glazed finish, jagged carved planes, and natural maze-like surface patterns. Its deep obsidian tone creates instant contrast and bold visual intensity, making it a standout choice for powerful, modern aquascapes. Dry, it shows a dark graphite sheen; underwater, it transforms into a rich jet-black stone with exceptional depth and cinematic presence.

Available Sizes
Mega Box – 46 lb – Ideal for 2' to 4' aquariums
Standard Box – per pound
Nano Bags – 4.4 lb – Smaller pieces for nano layouts
Available per pound as well

Each Box Includes
Nano: Stones from 4"–6"
Mega: Stones from 4"–15" including a signature centerpiece

Why You’ll Love It
✓ Deep jet-black coloration with natural glazed accents
✓ Rugged carved surfaces with maze-like ridges and crevices
✓ Intensifies in color underwater for dramatic contrast
✓ Perfect for Iwagumi, terrain peaks, ravines, and bold structural layouts
✓ Slightly hardening igneous stone — may gently raise pH and hardness
✓ Fully safe for all livestock when parameters are monitored

Design Tip
Pair Black Venom Stone with Heaven Sand for a dramatic black-and-white composition, or combine with darker substrates for a refined monochrome look. Add Black Venom Nano Boulders or Silver Shadow Chips to create cohesive shadow transitions around the base.

Specs & Care
Stone Type: Igneous rock
Color: Graphite to pitch-black dry; deep obsidian-black underwater
Texture: Jagged carved surfaces with natural maze-like patterns
Size Range: 4"–15" depending on box
Effect on Water: May slightly raise pH and hardness

Rinse thoroughly before use. Place stones on substrate or LandForms to protect aquarium glass. Secure stacked pieces with ScapeBound adhesive. Leave space from the glass for easier long-term maintenance.

Safe for all fish, shrimp, plants, and terrarium animals with routine water-parameter stability.

Customer Reviews

Overall rating: 5.0 / 5 from 1 reviews.