ITEM NAME:120x20mm 4 PCS Aquarium Fish Tank Air Stone Oxygen Bubble Aerator Pump J9D9 120x20mm 4 PCS Aquarium Fish Tank Air Stone Oxygen Bubble Aerator Pump J9D9 Air Stones work with an air pump and air pipe to create scores of tiny bubbles, adding oxygen to the water in fish tank or pond. As the bubbles aerate the water, they also help circulating hydroponic nutrients, invigorating the roots of plants and boosting healthy growth. It also effectively create water currents and dazzling underwater scenes, which make a beautiful surrounding to your aquarium. Net Weight: 253g Product Name: Aquarium Air Stone; Stone Colour: Black&Gray Material: Sandstone + plastic size: 120x20mm Connector Size: 4mm external, 3mm internal Package Contents: 4x Bubble stone Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
