Carefree Fish 1.4/2/4Inch Aquarium Nano Materials Air Stone Disc with 3ft Tube Fish Tank Oxygen Stone Disk Bubble Diffuser Fish

The oxygen dissolution rate of nano air stone is 7 times that of ordinary air stone. The same air pump is used for nano air stone, the oxygen dissolved in water in the same time is equivalent to three ordinary air stones of the same volume.The bubbles produced by air stone are not the bigger the better, but the smaller the better. The ultrafine bubbles produced by the nano air stone are quieter and make your fish healthier. Nano air stone is fired at high temperature, does not pollute the water quality, is the most suitable for ornamental fish tank air stone. Stainless steel material, in the brine will slowly oxidation rust, affecting the water quality.