Photo 1 of Pawfly Aquarium Air Stone Ball 2 Inch, Airstones for Aquarium Fish Tank Bucket Pond and DWC Reservoir, 2 Pack

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Photo 1 of Pawfly Aquarium Air Stone Ball 2 Inch, Airstones for Aquarium Fish Tank Bucket Pond and DWC Reservoir, 2 PackPhoto 2 of Pawfly Aquarium Air Stone Ball 2 Inch, Airstones for Aquarium Fish Tank Bucket Pond and DWC Reservoir, 2 Pack