Voonline Natural Black Lava Rocks 1.5kg

Voonline Natural Black Lava Rocks 1.5kg

Voonline Natural Black Lava Rocks 1.5kg are natural volcanic aquarium rocks that add a dramatic, rugged look to a tank while doubling as porous biological filter media. They suit freshwater and marine aquarists, from first-time hobbyists to experienced aquascapers, who want decoration that also supports water quality and a safe habitat for aquatic life.

Key Benefits

• Authentic lava rock: natural, porous stones formed from cooled volcanic lava, with a rough, rugged texture that looks at home in an aquascape.
• Rich black colour: creates a stark contrast that makes the colours of your fish and plants stand out, for a more engaging viewing experience.
• Biological filtration support: the porous structure gives beneficial bacteria an ideal place to thrive, contributing to improved water quality and healthier aquatic life.
• Fish safe: thoroughly cleaned and screened so the rocks won't harm your aquatic inhabitants.
• Versatile: works in a freshwater mountain-range layout or a unique seascape in a marine tank.

How to Use

Work the rocks into your aquarium landscape to build the look you want, whether that is a rocky mountain range for freshwater fish or a natural seascape for a marine setup. Their porous surface also lets them act as biological filter media while they decorate the tank.

Suitable For

• Freshwater aquariums
• Marine aquariums
• Aquarium beginners and experienced aquarists alike
• Anyone wanting a dark, natural backdrop that highlights fish and plant colour

Specifications

• Material: natural volcanic lava rock, black
• Grain size: 2–8 mm (0.08–0.31")
• Pack weight: 1.5 kg (3.3 lb)

What's Included

• 1 x 1.5 kg (3.3 lb) pack of natural black lava rocks

Frequently Asked Questions

Are these lava rocks safe for fish?
Yes. They are thoroughly cleaned and screened so they won't harm your aquatic inhabitants.

Can I use them in both freshwater and marine tanks?
Yes. They can be used to create a mountain-range look in a freshwater aquarium or a unique seascape in a marine tank.

Do lava rocks help with filtration?
Their porous structure makes them suitable as biological filter media. It gives beneficial bacteria an ideal environment to thrive, which contributes to improved water quality.

What size are the pieces?
The grain size is 2–8 mm (0.08–0.31"), so they are small, natural pieces rather than large boulders.

Why choose black rock for an aquarium?
The rich black colour contrasts sharply with fish and plants, making their colours look more vibrant against the rugged volcanic texture.

Is this suitable for beginners?
Yes. The rocks are easy to incorporate into an aquarium landscape, so they suit both novice and experienced aquarists.

When can I expect delivery?

• Gauteng (Jhb/Pta) - 1-3 working days
• Nationwide (Cpt/Dbn+) - 2-5 working days
• Outlying Areas - 3-7 working days

All orders are sent via Economy Road, typically through Fastway or Internet Express Couriers*. Estimated timeframes are not guaranteed. Once the order is collected by the courier, we have no control over third-party logistics and cannot make any time promises.

If you prefer a faster 🚀 shipping option, we also offer The Courier Guy during checkout in the dropdown selection. Please note that this option is not free, and you must choose it to use it. Please pay careful attention to the cutoff times and delivery timeframe for these options during checkout.

Enjoy the convenience of collection points and lockers! 📦

No more waiting at home or at work for your delivery. Simply choose a collection locker or pickup point and collect your order when it suits you.

Delivery times to lockers and pickup locations typically range from 2–7 working days, depending on your location.*

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Collection timeframes:

• Bob Box: Collect within 2 days of receiving your collection notification.
• PUDO Lockers: Collect within 36 hours of receiving your collection PIN or SMS notification.

If a PUDO parcel is not collected within 36 hours, it will automatically be transferred to the nearest PUDO Kiosk or Depot at no additional cost. The parcel will then be held there for approximately 2 days before being returned.

Please ensure you collect your parcel within the applicable collection period. Uncollected parcels will be returned to the sender, and additional shipping charges may apply should the order need to be resent.