WIO Black Venom Stone Mix, Size 10-30cm 1 pcs

WIO Black Venom Stone Mix – 10–30cm 1 pcs

Specifications:

Product: WIO Black Venom Stone Mix

Size: 10–30 cm

Quantity: 1 piece

Type: Igneous stone

Colour: Dark grey to deep black, becoming more intense underwater

Texture: Jagged surface with strong natural forms and maze-like detailing

Water Parameters: May slightly raise pH and hardness

Suitable For: Aquariums, aquascapes, terrariums and natural display layouts

Overview:

WIO Black Venom Stone Mix is a bold natural hardscape stone designed to create strong contrast and dramatic structure in aquariums and terrariums. Its dark grey to black colouring becomes more striking when wet or submerged, making it an excellent choice for layouts where depth, shadow and visual impact are important.

The jagged surface and detailed natural texture give each piece a rugged, sculptural appearance. This makes it especially suitable for high-impact aquascapes, Iwagumi-style layouts, planted tanks and terrarium displays where the dark stone contrasts beautifully with green plants, moss and lighter substrates.

As the stone may slightly increase pH and hardness, water parameters should be monitored when used in aquariums, particularly for soft-water fish, shrimp or sensitive livestock.

Key Features:

• Natural WIO Black Venom hardscape stone
• Approximate size: 10–30 cm
• Supplied as 1 piece
• Dark grey to deep black colour tone
• Colour appears more intense underwater
• Jagged texture with strong natural character
• Excellent contrast against plants, moss and light substrates
• Ideal for Iwagumi, dramatic aquascapes and terrarium layouts
• Can be combined with other stones, sands and gravels for custom hardscape designs
• May slightly raise pH and water hardness

Usage Tips:

• Rinse thoroughly with water before use
• Use a brush to remove dust or loose particles before placing in an aquarium
• Place on a stable substrate or suitable base layer rather than directly on aquarium glass
• Secure stones carefully when stacking or creating height in the layout
• Leave space between the stone and aquarium glass for easier maintenance
• Monitor pH and hardness when used in aquatic setups
• Regular water changes with soft or RO water can help manage hardness if required

Important Note:

• This is a natural stone, so each piece will vary in shape, colour, size and texture
• Images are for illustrative purposes only
• May slightly affect pH and water hardness
• Always rinse before use in aquariums or terrariums
• Suitable for aquatic use when prepared correctly and water parameters are monitored
• Hardscape only — aquarium, substrate, plants, wood and livestock are sold separately