Roman Gravel - Black Sand - 8kgPettex Roman Aquarium Gravel With a large range of natural, coloured and sand gravels Pettex Roman Aquatic Gravels are the perfect way to enhance the look of your aquarium. Decorative Pettex Roman Aquatic Gravel is the perfect way to enhance the visual impact of your tank. With their striking colours and unusual shapes our gravels our sure to give your aquarium the wow factor. Planting Medium Due to the finer size of the coloured and sand gravels in