Color as shown Size: 9.2 x 9.1 x 2.4cm Weight: 100g 【Safe Material】: The air stone is made of high quality non-toxic mineral material, which is very safe, sturdy and durable, can produce uniform and tiny bubbles, and has high oxygen dissolution rate. 【Keep supplying oxygen】 : The aquarium bubble stone can keep your fish tank Provide oxygen efficiently and smoothly. If you are an aquatic animal lover, the air stone is a must-have for your fish tank, pond, fish tank. Your fish will breathe better. 【Easy to Clean】: When the aquarium bubble stone is covered or blocked by algae and debris, you can easily clean it with a brush, very convenient. You can use it for a long time. We recommend cleaning it once. once a month to make it great effect. 【Wide Application】These air stones can be used in fish tank, pond, fish tank, freshwater aquarium, marine aquarium, hydroponic aquarium or fish farm. The small ones and dense bubbles produced by airstones can be used. Not only provide oxygen to fish,
