HIGH QUALITY: The product has been selected by the best Aquascapers for use in the aquarium. ADVICE ON USE: Before placing it in the aquarium it is essential to wash it abundantly under running water to remove dust, earth and other residues. IDEAL FOR: Designed for use in aquariums, paludariums, water terrariums and terrariums. NATURAL: Natural product, each piece is unique and may differ from the others in weight, shape, color and size, approximately 0.5 kg of rock is present in the package. DECORATIVE FOR AQUARIUMS: Natural rock specifically selected to recreate a natural setting with Acquascaping techniques or "Wild" biotopes.