Air stones

Pawfly air stones and diffusers

  • 13 models
  • 47 options
  • $3.99 to $34.99

13 models

Pawfly Mini Air Stones, Multi-Pack, 1 inch 10 pcs
Pawfly Mini Air Stones, Multi-Pack
from $3.99
  • 0.6–2 in
  • 7 options

4.6 (5,562) 4.6 out of 5 from 5,562 ratings

Pawfly Air Stone Disc with Suction Cups, 4 inch · single
Pawfly Air Stone Disc with Suction Cups
from $6.99
  • 2–8 in
  • 7 options

4.3 (4,302) 4.3 out of 5 from 4,302 ratings

Pawfly Air Stone Bar Bubbler, 4 Inch
Pawfly Air Stone Bar Bubbler
from $6.99
  • 4–16 in
  • 4 options

4.2 (4,292) 4.2 out of 5 from 4,292 ratings

Pawfly Air Stone Disc 1.5 Inch, 4 Pack
Pawfly Air Stone Disc 1.5 Inch
from $5.98
  • 2 options

4.5 (2,180) 4.5 out of 5 from 2,180 ratings

Pawfly Bread Air Stone, 1 Pack · 6 Inch
Pawfly Bread Air Stone
from $6.99
  • 2.3–6 in
  • 5 options

4.4 (1,305) 4.4 out of 5 from 1,305 ratings

Pawfly Air Stone Ball 2 Inch, Blue or Grey, 2 Pack(Grey)
Pawfly Air Stone Ball 2 Inch, Blue or Grey
from $6.99
  • 4 options

4.5 (831) 4.5 out of 5 from 831 ratings

Pawfly Large Air Stone Cylinders 4 x 2 Inch, 4x2" (2 Pack)
Pawfly Large Air Stone Cylinders 4 x 2 Inch
from $8.99
  • 2 in
  • 3 options

4.5 (810) 4.5 out of 5 from 810 ratings

Pawfly Nano Bubble Air Stone Disc, 1.4 inch
Pawfly Nano Bubble Air Stone Disc
from $9.99
  • 1.4–2.4 in
  • 2 options

4.2 (791) 4.2 out of 5 from 791 ratings

Pawfly Air Stone Ball 2 Inch, 2 Pack
Pawfly Air Stone Ball 2 Inch
from $6.99
  • 3 options

4.5 (570) 4.5 out of 5 from 570 ratings

Pawfly Long Air Stone Cylinder, 1 Pack · 8 Inch
Pawfly Long Air Stone Cylinder
from $13.99
  • 8–16 in
  • 5 options

4.2 (241) 4.2 out of 5 from 241 ratings

Pawfly Replacement Air Stones for biOrb Tanks, 5 Pack
Pawfly Replacement Air Stones for biOrb Tanks
from $6.99
  • 2 options

4.7 (201) 4.7 out of 5 from 201 ratings

Pawfly Hemispherical Air Stone Disc, 3 Inch
Pawfly Hemispherical Air Stone Disc
from $7.99
  • 3–4 in
  • 2 options

4.2 (87) 4.2 out of 5 from 87 ratings

Pawfly LED Air Stone Disc, Basic
Pawfly LED Air Stone Disc
$9.99

4.1 (45) 4.1 out of 5 from 45 ratings

About Pawfly air stones and diffusers

Thirteen stones and diffusers, from 0.6-inch cylinders a 2 W pump can drive to a 6-inch bread stone that needs more than 20 W.

Shape sets the job. Cylinders stand upright in a small tank, balls and discs lie on the floor, and the Air Stone Bar Bubbler draws a line of bubbles along the back glass in lengths from 4 to 16 in. With its 3 suction cups, the Air Stone Disc grips the glass in sizes from 2 to 8 in, while the Bread Air Stone simply sits flat, 30 oz heavy in its 6-inch size.

Bubble size is the other choice. Most of these stones give medium bubbles, and the Nano Bubble Disc and the Hemispherical Disc send up a stream of tiny ones. For a bit of color at night, the LED Air Stone Disc cycles 6 colors on a 12 V supply. Owners of a biOrb tank need the HS-55 replacements, 1.4 in long with a 1/4 in inlet.

The 13 air stones and diffusers on this shelf belong to Pawfly aquarium supplies.

Also by need: nano tanks, 1 to 5 gallons, pond aeration and big stones.

Questions about Pawfly air stones

What size pump does your Pawfly air stone need?

Each stone has a recommended pump power. The Mini Air Stones and the 1.5-inch disc run on 2 to 4 W, the bar bubbler on more than 2.5 W, the 2-inch balls and the 4-inch disc with suction cups on more than 4 W, the large and long cylinders on more than 7 W, and the 6-inch bread stone on more than 20 W.

Which Pawfly air stone makes the smallest bubbles for your tank?

The Nano Bubble Air Stone Disc and the Hemispherical Air Stone Disc. Both put out a cascade of tiny bubbles in place of the medium ones from our cylinders and balls, and the Nano Bubble disc runs on a 2 W pump at 2 L a minute. If only a few bubbles come out at first, switch the pump off for 5 seconds and back on.

How do you clean a clogged Pawfly air stone?

Brush it gently under water, then let it dry in a cool, airy place. Most stones clog after weeks or months, and the Nano Bubble disc is due a clean once a month. The rubber Long Air Stone Cylinder is the exception: wipe it, do not brush it. Replace the tiny biOrb stones instead of cleaning them.