Easy to install, suitable for volcano replacement lamps, freshwater aquariums, saltwater aquariums, desktop aquariums, hydroculture aquariums, ponds, aquarium decorations. Air stone for oxygen and ventilation in the aquarium. The round discs can remain stable at the bottom of your aquarium and produce more small air bubbles, which can increase the dissolved oxygen content and keep your fish alive. Br> The aquarium air bubble stone is made of non-toxic mineral material, sintered at high temperatures, safe, durable, washable and can be safely used in your aquarium. For the first time, we recommend that you wash it with tap water and wash it for 1-2 hours with water from the tank. Br> The light from the air bubbles does not produce itself. It should be used with the air pump (not included).< Changing LEDs, excellent night light for excellent night vision. Br> Color: white, blue, pink, green. < Br> Instructions: Connect the air stone to the overhead line pipe and the overhead line pipe to
