his gravel is designed as an aquarium substrate and is available in different grain sizes such as 4.8 mm and 6 mm. The manufacturer recommends washing thoroughly before use and using a substrate depth of about 3–10 cm.
What it’s good for
Community freshwater tanks
Natural aquascapes
Goldfish tanks
Tanks with hardy plants
Fish that prefer gravel over ultra-fine sand
Appearance
The color is usually:
light brown
beige
slightly reddish natural stone tones
It creates a softer, earthy look compared with black gravel or white sand.
Grain size
Kalahari gravel is usually sold in:
1–2 mm fine gravel
4.8 mm gravel
6 mm gravel
Fine grades are safer for bottom fish and rooted plants.
Black Polished Pebble 3–5mm
Description
The Black Polished Pebble 3–5mm from Aquatic Pets SA is a premium natural substrate designed to add depth, elegance, and contrast to your aquarium or aquascape. With its smooth texture and deep black shine, this pebble mix highlights the colors of plants, fish, and décor, creating a clean and professional look in any aquatic setup.
Each pebble is carefully cleaned, polished, and fish-safe, ensuring it is free from dust, toxins, or sharp edges. The slightly larger 3–5mm size makes it ideal for medium to large aquariums, where it allows proper water flow while anchoring plants securely.
Perfect for freshwater aquariums, aquascapes, terrariums, and natural displays, this substrate is available in 2 kg and 5 kg packs, offering flexibility for tanks of any size.
Key features
natural black polished pebbles (3–5mm)
smooth, round, and non-toxic
highlights fish and plant colors beautifully
suitable for freshwater and planted aquariums
enhances the appearance of aquascapes and terrariums
available in 2 kg and 5 kg packs
Specifications
size range: 3–5mm
color: polished black
weight options: 2 kg or 5 kg
suitable for: freshwater aquariums, aquascapes, and decorative displays
Suitable for
freshwater and tropical aquariums
planted and aquascaped tanks
terrariums and paludariums
decorative and interior displays
Usage tips
rinse thoroughly before use
layer evenly or mix with finer substrate for natural texture
use as a top layer for accent or as a full substrate base
ideal for anchoring aquatic plants and highlighting hardscape pieces
Why choose Aquatic Pets SA
At Aquatic Pets SA, we provide high-quality, natural aquarium substrates and décor materials carefully selected for beauty and safety. With over 15 years of experience in aquascaping and aquarium setup, we ensure that every product supports both the health of your fish and the style of your aquarium.
The Black Polished Pebble 3–5mm delivers a sleek, modern, and natural look — the perfect foundation for a clean, balanced aquatic environment.
Black Polished Pebble 2–4mm
Description
The Black Polished Pebble 2–4mm from Aquatic Pets SA is a premium natural substrate ideal for aquariums, terrariums, and decorative displays. With its smooth, glossy surface and deep black color, this pebble mix enhances the visual depth of your aquarium while complementing plants, fish, and hardscape elements beautifully.
These pebbles are carefully cleaned and polished, ensuring they are fish-safe and free from toxins or sharp edges. Their dark tone provides excellent contrast against green aquatic plants and colorful fish, helping to highlight the beauty of your aquascape.
Perfect for freshwater aquariums, aquascaping layouts, and planted tanks, this substrate is available in 2 kg and 5 kg packs to suit different aquarium sizes and design needs.
Key features
natural black polished pebble mix (2–4mm)
smooth, non-toxic, and aquarium-safe
enhances color contrast in aquascapes
suitable for planted and decorative aquariums
easy to rinse and ready to use
available in 2 kg and 5 kg packs
Specifications
size range: 2–4mm
color: polished black
weight options: 2 kg or 5 kg
suitable for: freshwater aquariums, aquascapes, and décor use
Suitable for
freshwater aquariums and planted tanks
aquascaping layouts and nature-style setups
terrariums and paludariums
decorative displays and vase arrangements
Usage tips
rinse thoroughly before placing in your aquarium
use as a base or decorative top layer for planted setups
mix with other substrate types for texture variation
ideal for accenting driftwood, stones, and aquarium ornaments
Why choose Aquatic Pets SA
At Aquatic Pets SA, we source and supply only high-quality aquarium substrates and natural décor materials. With over 15 years of experience in aquascaping and aquarium design, we ensure every product meets the highest standards for safety, aesthetics, and durability.
Create a clean, elegant, and natural look in your aquarium with our Black Polished Pebble 2–4mm, designed to complement any aquatic environment.
Malawi Yellow Pebble 2–4 mm
Description
The Malawi Yellow Pebble is a high-quality natural substrate with a soft golden-yellow tone that brings brightness and warmth to any aquarium or terrarium. With a 2–4 mm grain size, these smooth pebbles create a balanced and natural look that complements both plants and fish.
Ideal for African cichlid tanks, freshwater aquariums, and decorative displays, this substrate helps replicate the natural habitat of Malawi and Tanganyika cichlids while maintaining excellent water flow and clarity. The pebbles are pH neutral, non-toxic, and safe for all freshwater environments.
Key features
natural yellow color that enhances tank brightness and fish coloration
2–4 mm smooth, rounded grains for a clean, natural appearance
safe, non-toxic, and pH neutral
allows proper water circulation and bacterial balance
suitable for all freshwater aquariums, especially cichlid setups
easy to rinse and maintain
Specifications
product name: Malawi Yellow Pebble
grain size: 2–4 mm
available sizes: 2 kg and 5 kg bags
color: natural yellow
suitable for: freshwater aquariums, cichlid tanks, terrariums, and decorative use
Suitable for
African cichlid tanks (Malawi, Tanganyika, Victoria)
freshwater community aquariums
planted and aquascaped tanks
shrimp and snail aquariums
interior décor and terrarium layouts
Usage tips
rinse thoroughly before adding to the aquarium
use 1–2 kg per 10–15 litres of water for a full base layer
ideal for layering with darker or neutral substrates for visual contrast
Why buy from Aquatic Pets SA
With more than 15 years of experience in aquarium design and fish care, Aquatic Pets SA provides trusted, high-quality substrates that support healthy aquatic systems. Our selection of natural pebbles and gravels helps you create stable, visually appealing environments for all types of fish and aquatic plants.