Photo 1 of Upettools 1.4inch Aquarium Air Stone Fish Tank Nano Bubble Stone Kit with Control Valve Quiet Super-High Dissolved Oxygen Diffuser Makes Super Tiny Bubbles for Betta Fish & Small Tank

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Photo 1 of Upettools 1.4inch Aquarium Air Stone Fish Tank Nano Bubble Stone Kit with Control Valve Quiet Super-High Dissolved Oxygen Diffuser Makes Super Tiny Bubbles for Betta Fish & Small TankPhoto 2 of Upettools 1.4inch Aquarium Air Stone Fish Tank Nano Bubble Stone Kit with Control Valve Quiet Super-High Dissolved Oxygen Diffuser Makes Super Tiny Bubbles for Betta Fish & Small Tank