WIO Black Venom Boulder Stone Kit is a stunning and vibrant pitch-black rock that will add a touch of elegance to any aquarium or terrarium. Its smooth, black-glazed surface and maze-like texture make it a high-impact rock that will beautifully complement plants and mosses. Use it to create Ryoboku layouts for a stunning composition.

Black Venom Boulder mesmerizes with its stunningly vibrant pitch-black color and smooth black-glazed surface. Its maze-like texture makes it a high-impact rock that beautifully complements plants and mosses while creating intricate designs. It adds depth to your aquarium or terrarium and provides a stunning contrast that magnifies the green of your plants and mosses.

To achieve a high-impact composition, mix and match Black Venom Nano Boulders and gravels with Heaven sand. Place the boulders at different angles to create varying textures, producing a mesmerizing effect that will make your aquarium or terrarium truly unique. The stone may raise pH and hardness slightly; regular water changes are enough to keep hardness under control.

Key Points

• Vibrant pitch-black color
• Smooth black-glazed surface
• Maze-like texture
• Beautifully complements plants and mosses
• Great for Ryoboku layouts
• High-impact rock

Characteristics

• Type: Igneous stone
• Color: Dark grey in dry state; vibrant pitch-black underwater
• Texture: Smooth with rich forms and maze-like surface
• Stone size: Available from 5 to 30 cm
• Water Hardness: May raise pH and hardness slightly; regular water changes keep hardness under control

Availability at Cuboid Nature Aquarium

• Nano Box — 5 kg (11 lb): WIO's curated size mix, hand-selected assortment of stones from 5 to 30 cm
• Box — 10 kg (22 lb): WIO's curated size mix, hand-selected assortment of stones from 5 to 30 cm
• In-Store: Visit us in Pipersville, PA to hand-pick individual stones by the pound — choose exactly the pieces and sizes you want for your layout

Usage

• Suitable for both aquatic and terrarium environments
• Rinse rocks and stones with water before use; use a brush to clean before introducing to the aquarium
• Avoid placing rocks directly on the glass — place substrate or WIO LandForms beneath the hardscape first
• Always secure stones, especially when stacking; use WIO ScapeBound to prevent movement during maintenance
• Position stones a few centimeters/inches away from aquarium glass walls to facilitate maintenance
• Control any alterations in pH and kH by regular water changes with osmotic or soft water, or by using a water softener if necessary
• Safe for fish, shrimps, and other aquatic animals

Available from Cuboid Nature Aquarium — Authorized Retailer for WIO.