Oxygen Stones - 5 Pack

A very unique product for small aquariums. All you do is toss one of these small stones into the your fish bowl and it will generate oxygen for up to one month! This enables you to keep fish in a small tank without the use of an air pump. Also helps bacteria speed the decomposition of fish and plant waste by means of oxidation. Suitable for both freshwater and marine use. Use one stone for 1 fish in a bowl, 2 stones for two fish, and so on. Includes detailed instructions. 5 Oxygen Stones per package. Each stone is cylinder shaped with both a height and diameter of approximately 1/2".