Pawfly 12 Inch Air Stone Grey Mineral Bubble Stone Bar Diffuser Bubbler Airstones for Aquarium Fish Tank and Pump

Model ACB300 jetting volume 17 Lmin recommended air pump power 7 W standard ID airline tubing 316 inch Ideal for fish tanks aquariums DWC systems or small koi ponds 2 Bubbles Effects Produce a cascade of fine bubbles under less air input and medium bubbles under strong input Both form a rectangle bubble wall to increase oxygen level in your aquarium Stable in Water Each bar measures 12 L x 15 W and weighs 4 oz Come with an extra suction cup clip which keeps it lying steadily without floating in the water Reliable Material Compressed with sand and wrapped with a plastic base it causes no effect to the health of your aquatics Help keep fish or roots growing healthily Easy to Use Soak the stone completely in water for 1 hour before use Clean it regularly with a brush as it gets clogged after weeks or months of usage.