Oceanmax Riverbed Mix Fish Tank Substrate offers 4-6mm stones in a practical 5kg bag, ideal for establishing a lush and natural riverbed look in larger freshwater aquariums. The stones’ varied colors and textures not only provide a visually appealing base but also support beneficial bacteria and strong plant rooting. Fish will love exploring this comfortable, natural environment, which helps maintain water quality and ecosystem balance. Perfect for hobbyists seeking a low-maintenance, versatile substrate that enhances the health and beauty of their aquarium.