Aqua Natural Ebony Pearl Premium River Gravel 4.5kg

Aqua Natural Ebony Pearl is a premium natural river gravel with a smooth, dark finish that becomes a striking deep black when wet.

Sourced from New Zealand, the naturally rounded 2–4mm gravel creates a clean, high-contrast aquarium base that works particularly well with green plants, driftwood, colourful fish and natural aquascapes.

Ebony Pearl is pH neutral and suitable for freshwater aquariums where you want an attractive decorative substrate without intentionally altering the water chemistry.

Key Features & Benefits

• Natural dark river gravel with a rich black appearance when wet
• Smooth, naturally rounded stones
• 2–4mm grain size
• pH neutral aquarium substrate
• Triple washed during processing
• Creates excellent contrast with aquarium plants and colourful fish
• Suitable for freshwater community aquariums and aquascaping
• Can be used around rooted aquarium plants
• Natural New Zealand gravel
• Convenient 4.5kg bag

Why Choose Ebony Pearl Aquarium Gravel?

If you want a dark aquarium substrate without using artificially bright decorative gravel, Ebony Pearl gives you a much more natural look.

The deep colour can make:

• Green aquarium plants stand out
• Brightly coloured fish appear more visually striking
• Driftwood and rocks look more defined
• Aquascapes feel deeper and more dramatic

Its natural rounded appearance also works well in river-style aquariums, planted tanks and simple community setups.

Great for Planted Aquariums & Aquascaping

The 2–4mm grain size makes Ebony Pearl useful for creating a stable decorative substrate around aquarium plants.

It can be used on its own for plants that do not rely heavily on substrate nutrition, or combined with root fertilisers or a nutrient-rich substrate where more demanding rooted plants are being grown.

Because Ebony Pearl is primarily a decorative inert gravel, it should not be confused with aquasoil or another nutrient-rich planted aquarium substrate.

Browse our aquascaping supplies for aquarium plants, fertilisers, hardscape and other products to complete your layout.

Will Ebony Pearl Change My Aquarium pH?

Ebony Pearl is sold as a pH-neutral decorative aquarium gravel.

That makes it a good choice when you want the appearance of a natural river substrate without deliberately increasing pH or hardness in the way that substrates such as aragonite can.

Your overall aquarium water chemistry will still depend on your source water, rocks, filtration and other materials used in the tank.

Is Ebony Pearl Safe for Bottom-Dwelling Fish?

Ebony Pearl consists of naturally water-worn, rounded gravel rather than sharp crushed stone.

Its smooth texture makes it more suitable around many bottom-dwelling aquarium species than coarse or sharp-edged decorative gravel.

For species that naturally bury themselves deeply or constantly sift fine sand through their gills, a dedicated aquarium sand may still be the better substrate choice.

Do I Need to Rinse Ebony Pearl Before Use?

Yes.

Although Ebony Pearl is supplied triple washed, natural gravel can still contain a small amount of dust or fine material from handling and transport.

We recommend giving the gravel a final rinse in clean water before adding it to your aquarium.

Do not rinse aquarium substrate with soap, detergent or household cleaning products.

How Much Aquarium Gravel Do I Need?

The amount of gravel required depends on the dimensions of your aquarium and how deep you want the substrate bed.

A shallow decorative layer will use considerably less gravel than a deeper planted aquarium substrate.

For aquascaping, you may also want to create different substrate depths, with a deeper layer toward the back of the aquarium and a shallower foreground.

If one 4.5kg bag is not enough for your aquarium footprint, multiple bags can be combined to create the required depth.

Specifications

• Brand: Aqua Natural
• Product: Ebony Pearl Premium River Gravel
• Substrate Type: Natural river gravel
• Colour: Dark grey to deep black when wet
• Grain Size: Approximately 2–4mm
• Pack Weight: 4.5kg
• Water Chemistry: pH neutral
• Processing: Triple washed
• Origin: New Zealand
• SKU: AN_GRAVEL025
• Barcode: 9353482006871

Is Aqua Natural Ebony Pearl Right for Your Aquarium?

Choose Ebony Pearl if you're looking for a natural dark aquarium gravel that provides strong visual contrast without intentionally altering your water chemistry.

It is particularly well suited to:

• Freshwater community aquariums
• Planted aquariums
• Aquascapes
• Natural river-style setups
• Display aquariums where a dark substrate is preferred

Browse more aquarium gravel, sand and substrate or explore our Aqua Natural range.

Frequently Asked Questions

What size is Aqua Natural Ebony Pearl gravel?

Ebony Pearl is graded to approximately 2–4mm.

Is Ebony Pearl real natural gravel?

Yes. It is a naturally smooth river gravel sourced from New Zealand.

Does Ebony Pearl change aquarium pH?

Ebony Pearl is sold as a pH-neutral decorative substrate and is not intended to buffer or deliberately raise aquarium pH.

Is Ebony Pearl suitable for planted aquariums?

Yes. It can be used around aquarium plants, although it is primarily a decorative gravel rather than a nutrient-rich aquasoil. Root-feeding plants may benefit from additional substrate fertilisation.

Do I need to rinse Ebony Pearl before adding it to my aquarium?

Yes. Although the gravel is triple washed, we recommend a final rinse in clean water before use to remove any dust created during transport and handling.

Is Ebony Pearl suitable for bottom-dwelling fish?

Its naturally rounded texture makes it suitable for many bottom-dwelling fish. Species specifically adapted to fine sand or that regularly sift substrate may still be better suited to aquarium sand.

How much Ebony Pearl gravel do I need?

The amount required depends on the aquarium footprint and desired substrate depth. Larger aquariums or deeper planted layouts may require several 4.5kg bags.

What colour is Ebony Pearl?

The gravel has a naturally dark appearance and develops a particularly deep black finish when wet.