Japan ASO阿蘇 Black Obsidian Sand | Natural Aqurium Substrate | PH Neutral
Japan ASO 阿蘇 Black Obsidian Sand is natural sand in natural BLACK color. Great to place a thin layer of Japan ASO 阿蘇 Black Obsidian Sand on the bottom of a small aquarium. sourced from Japan's ASO Region 阿蘇.