10 Pack Air Pump Bubble Diffuser Air Stone Fish Tank Aerator

Material: StoneColor: Blue, Black, Red, Green , YelllowSize: 15*25 mmSuitable Air Tube ID : 4 mm(3/16')weight70gQuantity: 10PcsPlease note : air pump and air tube are not includedSAFE AND HEALTHY ENVIRONMENT:This air stone for hydroponics is made of silicon carbide, which has no effect on the growth of fish and hydroponics, but also promotes it.MULTIPLE COLORS:Not only can it play a role in increasing oxygen, but you can also choose the color to match the fish tank decoration to make the fish tank more eye-catching.LONG USE TIME:Soaking the air stone in water for one hour before use.Brush the stone surface every 2 weeks, you will find that he can accompany you for a long time and save a lot of money.