Aquaneat Aquarium Air Stones 1 Inch 12Pcs, Bubble Stone, Fish Tank Airstones, Aerator Stone Bubble Diffuser, Air Pump Accessories For Aquariums, Fish Tanks, And Hydroponics

Aquaneat 1” Small Air Stone
Features:
Widely applicable: Great for freshwater, saltwater/reef aquariums and hydroponic use; Increase oxygen levels, 'blow off' CO2 and raise pH; Can be easily driven by even nano air pumps
Material: Durable and sturdy material; Safe to your fish
Dimension: 0.55' D x 1.00' H (15mmx25mm); Fits standard airline tubing aquarium and CO2 tubing with inner diameter of 3/16'(4mm)
Note: You have to soak it in water for about 30 minutes before connecting to an air pump to run it
Includes: 12 pieces of gray air stones
DIMENSION:
0.55' in diameter x 1'H
INCLUDES:
12 pcs of air stones