Ceramic stone for air pumps.
Discharges bubbles in a wide area (* 1) with a diameter of 8 cm.
Quickly infiltrate fine bubbles (* 2) into water.
Just connect the hose of your air pump.
Utilizing horse mackerel, it discharges fresh air into water such as sweetfish, fish keep, and ornamental fish.

(* 1) There are individual differences in the appearance of bubbles. Be sure to absorb water firmly before use.
(* 2) The size and amount of bubbles vary depending on the air pump.