Whakaari Stone
Complete the scape
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About this product
Whakaari Stone Black Volcanic Lava Rock for Aquascapes
Bring dramatic volcanic textures to your aquarium with Whakaari Stone (Black Volcanic Rock). This premium aquascaping rock is lightweight, porous, and angular. It is admired for its rugged dark appearance with white mineral accents. It creates depth, contrast, and authenticity in planted aquariums and African Cichlid tanks.
Why Choose Whakaari Stone?
Whakaari Stone is highly versatile, making it a favourite for minimalist Iwagumi aquascapes and more complex natural layouts. Its porous texture enhances visual depth and provides extra surface area for beneficial bacteria growth, improving aquarium health and stability.
The irregular, angular forms make it easy to stack, contour, or use as striking focal points. Combined with sands or gravels like Grey Coast Sand or Aqua Gravel, Whakaari Rock helps recreate volcanic riverbeds and rugged landscapes inside your aquarium.
Usage and Care Tips
- Rinse stones thoroughly before adding to your tank
- Pre-soak to remove loose dust and ensure clarity
- Combine different sizes (small to large) for natural layouts
- Ideal for creating caves, cliffs, or accent stones in planted tanks
What is Black Volcanic Rock made of?
Black volcanic rock is composed mainly of iron and magnesium minerals. Some pieces may appear glassy or spongy due to trapped gases during lava cooling.
Why is volcanic rock black?
he rapid cooling of lava at the surface produces black coloration, with glass particles and minerals contributing to its rugged texture.
Choose Whakaari Stone (Black Volcanic Lava Rock) and transform your aquarium into a bold volcanic landscape. Its lightweight, porous nature and dramatic colours make it an unbeatable choice for hobbyists seeking authentic aquascaping beauty at an affordable price.
⚠️ A note on this natural product
Every stone is one of a kind. Because this is a natural material, its size, shape, texture, colour and mineral markings — and, where sold by weight, the number of pieces you receive — will vary, so the photos are a guide rather than the exact item you'll get. Natural pitting, holes and lighter mineral veining are part of the rock's character, not faults. We can't guarantee a set mix of small, medium or large pieces unless it's arranged with us before purchase.
Want a particular size or shape? Message us before ordering and we'll do our best to hand-pick pieces to suit your scape.
Delivery and returns
Free delivery over $100 in WA and $150 elsewhere in Australia. Free pickup from our Kenwick store, Tue to Sat, 12pm to 6pm.