Pack of 4 aquarium airstones. These airstones help provide your aquarium with the crucial job of circulating oxygen bubbles in your tank to help ensure your aquarium environment remains healthy for your fish. Easy to use and made from durable material, these airstones are a must to your aquarium set-up.
Easy to use: Connect to the air pump and place the stones into the water.
High quality and hard material, good for long-term use and safe for fish.
Can be washed repeatedly.
Colour: Dark Grey. As shown in the picture. Material: Sand. Size: (L x W x H): 4cm x 4cm x 1.5cm