Creates bubbles in fish tank while attached to an air pump.
Used to increase the dissolved O2 level in the aquarium.
It is an important instrument to successfully keep aquatic fish for respiration process.
SIZE
SMALL : 4cm L x 1.5cm DIAMETER ( 5PCS/BAG )
MEDIUM : 6cm L x 2cm DIAMETER ( 3PCS/BAG )
PLASTIC : 6cm L x 1.5cm DIAMETER 5LAYERS ( 3PCS/BAG )