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WIO | Boulders - Black Venom Boulder

WIO | Boulders - Black Venom Boulder

Regular price Dhs. 177.75 AED
Regular price Sale price Dhs. 177.75 AED
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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 is a rock that 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. Black Venom Boulder is a great choice for complementing ryoboku layouts. 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. You can create different textures by placing the boulders and gravels at different angles, creating a mesmerizing effect that will make your aquarium or terrarium look unique.


Key Points

  • Vibrant pitch-black color

  • Smooth black-glazed surface

  • Maze-like texture

  • Complements plants and mosses

  • Great for ryoboku layouts

  • High-impact rock



  • Type: Igneous stone

  • Color: Dark grey and vibrant pitch-black underwater

  • Texture: Smooth with rich forms

  • Stone size: Available from 10 to 30 cms

  • Water hardness: May raise pH and hardness slightly

  • Packaging: Available in boxes of 25 kg in Small, Mix, and Large sizes.



  • It can be used in both aquatic and terrarium environments.
  • Rinse rocks and stones with water before use. Use a brush to clean it before introducing the stones in the aquarium.
  • Avoid placing rocks directly on the glass as they can be very heavy and sharp. Instead, place substrate or our LandForms before placing the hardscape to help fix the exact stone position with more freedom.
  • Always secure the stones, especially when placing one rock on top of another, you can do so with our ScapeBound, as the top rock may move or fall during regular maintenance, harming your dwellers or even breaking the aquarium.
  • 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


Boulder Set Box

Perfectly suited for tanks up to 60 cm, our Boulder Set Box delivers depth and character to your scapes. Crafted with precision and expertise, this set includes a mix of boulders in various sizes:

  • One Signature XL Main Stone plus Complementary Stones Mix

With a weight range of 10kg Aprox, our Boulder Set Box provides the perfect balance of size and quantity for creating stunning compositions in smaller setups.


Boulder Set Mega Box

Specifically crafted for larger tanks ranging from 75 cm to 120 cm, our Boulder Set Mega Box offers a substantial enhancement to your bigger aquatic environments. This set includes a selection of boulders in various sizes:

  • One Signature XXL Main Stone plus Complementary Stones Mix

With a weight range of 22kg Aprox, our Boulder Set Mega Box provides the perfect combination of size and quantity to create amazing rock formations and captivating vistas in your larger setups.

Crafting a stunning scape has never been easier with our Boulder Sets. Each boulder is carefully chosen to provide depth, texture, and character to your scaping vision. Whether you prefer intricate details or a captivating subaquatic element, our Boulder Sets offer the versatility and aesthetic options to bring your creative vision to life.

Let your imagination run wild as each boulder becomes a brushstroke that paints a picture of natural splendor. Elevate your scaping journey with our Boulder Sets and watch as your aquarium, paludarium, or terrarium transforms into a captivating masterpiece.

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