This premium gravel is perfect for use in Aquarium Fish Tanks and Vivariums. Additionally, it serves as a fantastic material for hobbies and crafts, and is suitable for general gardening applications—great for enhancing the look of plant pots. 6-9mm (gravel) Packaged in a 10kg bag FORMULA FOR CALCULATING REQUIRED GRAVEL PER TANK To determine the amount of sand or gravel needed to achieve a Two Inch (2") depth in your Fish Tank, please follow this formula: 1) Multiply Tank LENGTH by Tank WIDTH (in inches). For instance: 47" Inches x 19" Inches = 893 2) Divide the result by 10. For example: 893 / 10 = 89.3 3) Convert to KG (Kilograms) by dividing the answer by 2.2. For example: 89.3 / 2.2 = 40.5 KG REQUIRED GENERAL GUIDELINES FOR 2" GRAVEL DEPTH 60cm / 2ft TANK = 25 kg 80cm / 2.6ft TANK = 30 kg 100cm / 3.3ft TANK = 35 kg 120cm / 4ft TANK = 40 kg These figures are estimates, and you may prefer a thicker or thinner layer of gravel depending on your design preferences.

Natural Color Stone Semi-Rounded Soil XF20106A in Black, 2-4 mm, 10 kg This premium natural soil is perfect for enhancing the beauty of aquariums, paludariums, and terrariums. Featuring a sleek black hue, it effortlessly complements any aquatic or terrestrial setup. Grain size: 2-4 mm. Total weight: 10 kg.

Natural Color Stone Soil XF20106C Gravel Semi-Rolled. Black (4-6mm) 10 kg

MARFIED CONTROSOIL BLACK A versatile aquarium plant substrate derived from volcanic materials Promotes robust root growth for aquatic plants Rapidly colonized by helpful microorganisms that enhance overall water quality Does not break down or murky the aquarium water Aids in clarifying water and eliminates impurities

This AQUAEL product serves as a premium bottom substrate designed for freshwater aquariums, particularly those featuring natural aesthetics, lush plant life, and shrimp inhabitants. Visually, the Soil is akin to black gravel with an average granule size of 2.5 mm. Made from natural, thoughtfully selected materials, it optimizes water parameters essential for the health of various freshwater ornamental fish, plants, and crustaceans. The positive impact on the entire ecosystem becomes evident quickly: clearer water, thriving plants, and more energetic aquatic life!  How does it correct water parameters? Advanced Soil Plant is packed with natural nutrients that gradually release into the water* and positively influence key aquarium water characteristics for aquatic species: it helps lower or stabilize pH and KH (carbonate hardness) levels. As a result, plants experience enhanced growth and display a more vibrant appearance. Thanks to this Soil, fish can even be introduced on the very first day of setting up the aquarium. Moreover, this Soil enhances biological filtration within the aquarium due to its porous nature, making it an ideal environment for beneficial nitrifying bacteria to flourish. The granules also trap nitrogen compounds, thereby aiding in the preservation of a healthy ecosystem. Consequently, water quality improves, resulting in visibly crystal-clear water. The dark substrate not only functions well but also offers aesthetic benefits: its deep color makes ornamental fish, vibrant shrimps, and lush green or reddish plants stand out beautifully; colorful decorations also create striking contrasts. *The Soil continuously releases nutrients over time, ensuring long-lasting effectiveness and allowing for sustainable use without the need for frequent changes or additional nutrient supplements.