AQUANEAT Aquarium Air Stones 1 Inch 12 Pack Bubble Stone Aerator Bubble Diffuser Air Pump Accessories For Aquariums Fish Tanks And Hydroponics

Widely applicable: suitable for small fish tanks and aquariums, helping extend the life of your nutrient solution Medium Bubbles: The air stone cylinders produce dense bubbles,tiny but steady, keep fish/ roots healthy and promote plant growth Air stone cylinder dimension: 0.55\" D x 1.00\" H;Fits for 3/ 16" standard airline tubing Quality and materials: made of , washable and n-toxic materia te: soak the stone completely in water for 30 minutes before use; clean it with a brush after a period time of use