Underwater Treasures Bubble Mist Airstone -Rectangular

Underwater Treasures Bubble Mist Rectangular Airstones provide life-sustaining oxygen bubbles to all your aquarium inhabitants, keeping them healthy and happy! These high quality airstones provide effective aeration, while producing a stunning visual display. Can be easily embedded in your aquarium gravel, or hidden within hollow ornaments and decorations! Available in 4" and 6"