* SODIAL is a registered trademark. ONLY Authorized seller of SODIAL can sell under SODIAL listings.Our products will enhance your experience to unparalleled inspiration. * SODIAL(R) Gray Round Shape Air Pump Airstone for Aquarium Tank Fish * It is for freshwater, saltwater aquarium and hydroponic use. * It¡¯s used to increase the dissolved oxygen level in the aquarium. * It produces fine bubbles making it efficient in the replacement of Oxygen in fish ponds, tanks or hydroponic systems. * Weight : 28g * Package Contents : 1 ¡Á Aquarium Airstone,1 x Straight Pipe