Volcanic Rocks - Black - 10 kg - 10-30 cm

The volcanic rocks are a perfect addition to the bottom of your fish tank or aquarium, helping you...

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OnBuy.comVidaxl (Black, 10-30 Cm (10 Kg)) Volcanic Rocks Lava Accent Rocks Aquarium Volcanic Lava Stones Beads
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Product Information

Full details

This product is for aquarium enthusiasts and landscapers seeking natural, functional decor. The key benefit is creating a beautiful underwater world while simultaneously improving water quality through biological filtration. A minor caveat is the natural variation in rock size and shape, requiring a bit of pre-planning for placement. These black volcanic rocks from VidaXL are 100% natural, safe for freshwater and saltwater environments, and versatile for both aquariums and garden landscapes.

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BrandVidaXL

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FAQs

Do I need to boil these volcanic rocks before putting them in my aquarium?

Boiling is generally not necessary. A thorough rinsing under running water is sufficient to remove dust and debris. Boiling is usually reserved for sterilizing items that might carry unwanted organisms, which is less of a concern with these natural rocks.

Will these rocks affect my aquarium's pH level?

No, these volcanic rocks are 100% natural and inert. They are designed not to alter the water's pH or chemistry, making them safe for a wide range of aquatic environments.

How much rock do I need for my aquarium?

This depends on your tank size and aquascaping goals. The 10 kg pack offers a substantial amount, suitable for creating significant features or a substantial base layer in medium to large tanks. You can estimate coverage based on the size of your tank and desired rock density.

Can I use these rocks with snails or shrimp?

Yes, these rocks are perfectly safe for snails, shrimp, and other invertebrates. Their porous surface can even provide micro-habitats for beneficial microorganisms that invertebrates may feed on.

Are the sizes of the rocks consistent?

The rocks range in size from 10-30 cm. Due to their natural origin, there will be variations in individual piece size and shape within this range.

Can these rocks be used in a turtle or amphibian habitat?

Yes, their natural appearance and durability make them suitable for terrestrial or semi-aquatic habitats, provided they are cleaned appropriately for the specific environment.

How do these rocks help with filtration?

The highly porous surface of volcanic rock provides a large area for beneficial bacteria (like Nitrosomonas and Nitrobacter) to colonize. These bacteria are essential for breaking down toxic ammonia and nitrite in the aquarium's nitrogen cycle, thus acting as a biological filter.

Troubleshooting

Water becomes cloudy after adding rocks.

Rinse the rocks more thoroughly before adding them. If the cloudiness persists, it may be a temporary bacterial bloom, which should clear up on its own within a few days as the aquarium's biological filter establishes.

Rocks don't stay in place.

Ensure the base layer of substrate is stable. For aquascaping, consider using aquarium-safe silicone to adhere rocks together or to a base platform for more complex structures.

Concern about water chemistry changes.

These rocks are inert and natural; they should not significantly alter water chemistry. Monitor your water parameters (pH, ammonia, nitrite, nitrate) closely after introduction. If changes occur, ensure rocks were properly rinsed.

Pros and Cons

Pros

  • Improves water quality through natural biological filtration.
  • Safe for both freshwater and saltwater aquarium environments.
  • Enhances aquarium aesthetics with a natural, rugged look.
  • Supports higher oxygen levels for aquatic inhabitants.
  • Versatile use in aquariums, terrariums, and garden landscapes.
  • Durable and long-lasting natural material.

Cons

  • Requires rinsing before use to remove dust and debris.
  • Natural size and shape variations mean some fitting may be needed.
  • Can be heavy, requiring careful handling during placement.
  • May initially lower pH slightly in very soft water before establishing beneficial bacteria.
  • Not suitable for aquariums requiring a specific substrate type like sand or fine gravel for burrowing species.

Setup, Compatibility & Care

Setup: Before introducing the volcanic rocks into an aquarium, it is crucial to rinse them thoroughly under running water to remove any dust or loose particles. This prevents clouding your aquarium water. For landscaping, rinsing is also recommended to present a cleaner appearance.

Compatibility: These rocks are compatible with both freshwater and saltwater aquariums. They are safe for all types of fish, invertebrates, and aquatic plants. They do not contain harmful chemicals and will not leach toxins into the water. Ensure adequate weight distribution in larger aquarium setups to prevent substrate disturbance.

Care: Volcanic rocks are virtually maintenance-free. In aquariums, they serve as a habitat for beneficial bacteria, aiding in biological filtration. If they become covered in algae over time, they can be gently scrubbed with an aquarium-safe brush. For landscaping, they require no specific care beyond occasional rinsing if desired.

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