Package includes: 10 x Small Size Aquarium Accessories Oxygen Pump Matching Air Stones
Diameter: 15mm; Air inlet diameter: 4mm; Weight: 97g
It is made of mineral materials, which can effectively generate water flow and decoration. Durable material, washable. Safe and non-toxic to your fish
Application: Wide range of applications, suitable for hydroponic systems, ponds, fish tanks, freshwater/saltwater aquariums and other systems, helping to extend the life of nutrient solution, keep fish/root healthy and promote plant growth
Note: The product should be cleaned regularly when it is blocked after several weeks or months of use
