Bubble Disk - 3"

Underwater Treasures Bubble Discs create vital bubbles for active fish and a beautiful aquarium. They circulate water while generating much-needed oxygen for your aquarium and all its inhabitants. The size and flow rate of your air pump will determine the size of the disc that will evacuate air bubbles. Rinse the bubble disc with clean water to remove any dust. 3" diameter. 3" diameter.