- Sku: A970
- Vendor: Marina
Marina Long Air Stones
The Marina Long Air Stone turns the output of any aquarium air pump into a steady curtain of fine bubbles. Its long bar shape spreads bubbles across a wider area than a round stone, boosting oxygen exchange, driving gentle water circulation, and adding a lively decorative streamer to the tank. Safe for both freshwater and saltwater aquariums. Available in 4 inch and 12 inch lengths.
An air stone needs an air pump and airline tubing to run. Browse air pumps and accessories or grab a length of premium airline tubing at Squeaky's Aquatics.
What It Does
- Oxygenates. A fine bubble curtain increases surface agitation and gas exchange, raising dissolved oxygen for fish and beneficial bacteria.
- Circulates. Rising bubbles pull water upward and keep the tank gently moving, reducing dead spots and surface film.
- Decorates. A bright wall of bubbles adds movement and a professional look to any display.
- Runs air-driven gear. Powers sponge filters, bubble ornaments, and under-gravel filters from the same air pump.
Choose Your Size
| Size | 4 inch (10 cm) | 12 inch (30 cm) |
|---|---|---|
| Bubble spread | Focused single streamer | Wide, full-length bubble wall |
| Best for | Nano and mid-size tanks, sponge filters, single accent stream | Longer or larger tanks, back-wall bubble curtains |
| Water type | Freshwater and saltwater | Freshwater and saltwater |
| SKU | A970 | A974 |
How to Use
- Connect the stone to airline tubing running from your air pump.
- If the pump sits below the water line, add a check valve to stop back-siphoning.
- Soak a new stone in water for a few minutes before use to clear trapped dust.
- Tune the bubble output with an air pump that has a flow dial or an inline air valve.
Frequently Asked Questions
Do I need an air pump to use this?
Yes. An air stone does not make bubbles on its own. It attaches to airline tubing from an air pump, which supplies the air that becomes the bubble stream.
Can I use it in a saltwater tank?
Yes. The box states it is safe for both fresh and salt water aquariums.
The bubbles got bigger and uneven over time. Why?
Mineral deposits and debris gradually clog the stone's pores. Soak it in a vinegar solution and rinse, or simply swap in a fresh stone to restore a fine bubble curtain.
Which size should I pick?
Choose the 4 inch for most tanks, sponge filters, or a single accent stream. Choose the 12 inch when you want a wide bubble wall along the back of a longer or larger aquarium.
Have a question?
Marina Long Air Stones
