• Selected natural rock to recreate natural environments in aquariums with Acquascaping techniques or 'Wild' biotopes. • Each piece is unique in weight, shape, color, and size, with approximately 1 kg of rock in the package. • Ideal for aquariums, paludariums, water terrariums, and terrariums. • Before placing in the aquarium, wash thoroughly with running water to remove dust, dirt, and residues. • Calcareous rock that can increase water hardness. • Product dimensions: 10 cm wide, 6 cm high, and 15 cm long.