30mm (1 Inch) Ball Round Aeration Airstone for Pond & Aquarium, Value 4 Pack, Air Stone Bubble Diffusers for Fish Tanks, Aquariums & Water Garden Koi Fish Ponds

30mm Ball Aeration Airstone For Ponds and Aquariums, Value 4 Pack. High quality round air stone that will gives a rich micro bubbles of oxygen. Airflow dependent on depth of Pond (aquarium) and output of air pump. Fitting for all standard airlines. Aquarium Ball Type Airstone Aeration stones are called air stones, discs, bubblers or diffusers and come in many shapes, sizes, colors and coarseness levels. Usually made of lime-wood or a porous stone its main purpose is to gradually diffuse micro air bubbles through your water with the help of a pond pump and tubing. They do not clog and give a better distribution of air with finer bubbles than other types of aeration systems. Spherical and cylindrical shaped airstones are also available in a range of sizes. Sintered or regular airstones are very durable and extremely easy to clean. They are safe for all types of lakes, ponds, fresh water aquariums, salt water or marine fish tanks. Always rinse this or any aquarium decoration product with water prior to putting into your aquarium or fish tank.