The Aquaforest Bio Sand 10kg Marine Aquarium Substrate is an ideal choice for any salt or reef aquarium setup. This natural, white, 0.5–1.5mm sand not only adds visual appeal to your tank but also supports fast tank maturation, stabilizes water parameters and fosters a healthy ecosystem. With Aquaforest Bio Sand, you'll also benefit from the presence of beneficial bacteria that aid in the breakdown of waste, ensuring clean and clear water. Use this top-quality substrate in conjunction with your aquarium's intended substrate for optimal results and a thriving marine habitat.