4"-18" Air Stone Curtain Bubble Bar Aquarium Fish Tank Aerator Pump Hydroponics(READY STOCK)

Specifications: Item: Aquarium Air Bubble Stone Bar For Air Pump Outlet Material: Mineral + Plastic Sizes: 4inches(10cm), 6inches(15cm), 8inches(20cm), 10inche(25cm) Suit for Air Tube: inner diameter 4mm How to choose an air pump: The airstrip of 10cm-30cm in length can be used with air pumps of 2W and above. The airstrip of 40-60cm in length can be used with air pumps of more than 3W. The higher wattage of the air pump, the better the air output. Note: 1. The use of the bubble bar to lay, sand side up, to maintain uniform air, such as gas bar rock oblique will cause uneven or no air bubble, etc. 2, After the connection, the trachea cannot be significantly bent and folded to prevent air from being pushed into the air bubble strip and causing air blockage. 3, Manual measurement has some errors, please purchase carefully. Buyers need to know 1, When used for the first time, it is normal when the bubble is larger or the air outlet is uneven. 2, Please soak in water for over 1 hour before use. So the air in the stone bar can go out, in order to get a better bubble effect, and then connect the air pipe and turn on the air pump. 3, If the bubble effect becomes worse after long-time use, please take out the gas stone and clean it, and then use it repeatedly.