Hygger Aquarium Air Stone can create a great deal of tiny bubbles that your fish will love. Ideal for freshwater, saltwater aquariums, hydroponic, or in aqua farms, aqua cultures, create amazing beautiful scenes under waterThe air diffuser area is very smooth and exquisite, not like other poor quality air stone touch rough.Hygger air bubble stone has the following features:- Super sturdy & durable, service life can be 2 to 3 years.- Weighs enough to sink in the bottom, no need suction cups.- Dissolve more oxygen to the water.- Produce quiet smooth dense small bubbles in the water.- Strong filtration, for fresh and salt water.- White color and disc shape, a good decor for your aquarium.- Easy to clean.- Comes with other accessories.Want to create beautiful and fairy bubbles wall in your aquarium, please buy 2 or more different size of air stones.Specification:2 sizes: 2 inch, 4 inch. Weight: the 2 inch air stone weighs 5.2oz/150g, the 4 inch air stone weighs 15.2oz/430g.Outlet size：2 inch disc air stone can only be compatible with 4mm airline, the 4 inch disc air stone can be compatible with airline of 4mm or 8mm. Compatible air pump wattage: the 2 inch air stone can be drove by 2W or larger wattage air pump, the 4 inch air stone can be drove by 4W or larger wattage air pump. Warm Tips: 1. To make finer and large amount of bubbles, please soak the air stone in aquarium water for 15-20 minutes before use. 2. If the bubbles did not come out of whole circle and only coming out one side of the disk, your should sure the pump you use has enough power to work it. 3. Cleaning tips: we suggest to clean the disc once a month, of course you can clean it more often. You need to clean algae and other impurities on the disc to prevent holes blocked. After-sales: 1 year free replace (just contact us).
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