Penn-Plax Aqua-Mist Add-A-Stone Air Stone – Green/Blue
The Penn-Plax Aqua-Mist Add-A-Stone provides a steady stream of bubbles to enhance oxygenation in both freshwater and saltwater aquariums.
Constructed from durable sandstone, this air stone is long-lasting and designed to add natural beauty to your aquatic environment.
Multiple units can be connected together to increase aeration efficiency. Ideal for use in both freshwater and saltwater setups.
| Feature | Detail |
|---|---|
| Material | Sandstone |
| Color | Green/Blue |
| Dimensions | 2 in x 10 in |
| Usage | Freshwater and saltwater aquariums |
| Connectivity | Multiple stones can be linked together |
FAQ
Can this air stone be used in both freshwater and saltwater aquariums?
Yes, the Penn-Plax Aqua-Mist Add-A-Stone is suitable for both freshwater and saltwater aquariums.
Can multiple air stones be connected together?
Yes, multiple sandstone airstones can be connected to increase aeration.
Is the material of the air stone safe for fish?
The sandstone material is non-toxic and safe for use in aquariums with fish.


Adam Avery –
The air stone creates a steady bubble flow that improves water circulation. It’s durable and looks natural in the tank. Works well in both freshwater and saltwater setups.
Victor Walker –
I connected two units for better aeration. The bubbles are consistent and the green/blue color blends well with my tank decor. No issues after several months of use.
Jennifer Rampling –
Great product for adding natural-looking bubbles. The sandstone material is sturdy and doesn’t break easily. Works well with my saltwater tank.