DescriptionAre you looking for filter media for aquarium? This aquarium filter media ball ismade of natural mineralmaterial for safe and practical to use. It can be used inseawater tank, fresh water tank, aquatic plant tank. And its strongfilter ability and high density design can stable water quality andreduce fish died.Features-Color:As Shown -Material:Natural mineral -Size:16.00X11.00X4.00cm/6.29X4.32X1.57in -Safe for aquatic fish, suitable for fresh and saltwater environments, will not harm your small fish. -This filter media balls can filter and purify water, improve aquarium water quality, decompose impurities, stabilize PH. -This filter media can help you tocreate a good living environment for fish, suitable for fish tank or aquarium. -This set contains a mesh bag that can be used to hold these aquarium filter medians, easy and convenient to use.-Though simple in design, it's so practical when you useit, easily create a clean water environment for fishes, turtles and other pets.
