*No Packaging

• Made of high quality non toxic mineral materials. Through high temperature sintering, the stone is strong and durable, has a high dissolved oxygen rate and produces uniform and tiny bubbles.
• This bubbler diffuses finer, richer bubbles than traditional sand and air stones, which will be more appreciated by your application.
• The square design on both ends of the bubbler allows this aquarium air stone to remain stable at the bottom of your reservoir.
• Suitable for use in hydroponic systems, ponds, and aquarium fish tanks, it helps prolong the life of the nutrient solution, keeps fish/roots healthy and promotes plant growth.
• If there are no air bubbles in a part of the air stone, replace the pump with a higher powered one. After a long period of use, if there are fewer air bubbles, clean it.