Air stone circulate aquarium water, generating oxygen whilst providing environmental enrichment. Direction: rinse the air stone gently in warm clean water to remove dust. Ensure check valve is in place. This will stop water from siphoning out of your aquarium if the pump fails or place the air pump above the water level. Try to keep the air stone level. This will ensure bubble along the entire length of the stone. If the air stone stops working correctly remove it from the Aquarium and clean in warm water, or replace it. Check the operation of you air pump as the diaphragms or flapper valves inside the air pump may have deteriorated.
Air stone circulate aquarium water, generating oxygen whilst providing environmental enrichment. Direction: rinse the air stone gently in warm clean water to remove dust. Ensure check valve is in place. This will stop water from siphoning out of your aquarium if the pump fails or place the air pump above the water level. Try to keep the air stone level. This will ensure bubble along the entire length of the stone. If the air stone stops working correctly remove it from the Aquarium and clean in warm water, or replace it. Check the operation of you air pump as the diaphragms or flapper valves inside the air pump may have deteriorated.
Aqua One Airstone - 2.5cm (2 Pack)
Air stone circulate aquarium water, generating oxygen whilst providing environmental enrichment. Direction: rinse the air stone gently in warm clean water to remove dust. Ensure check valve is in place. This will stop water from siphoning out of your aquarium if the pump fails or place the air pump above the water level. Try to keep the air stone level. This will ensure bubble along the entire length of the stone. If the air stone stops working correctly remove it from the Aquarium and clean in warm water, or replace it. Check the operation of you air pump as the diaphragms or flapper valves inside the air pump may have deteriorated.
Air stone circulate aquarium water, generating oxygen whilst providing environmental enrichment. Direction: rinse the air stone gently in warm clean water to remove dust. Ensure check valve is in place. This will stop water from siphoning out of your aquarium if the pump fails or place the air pump above the water level. Try to keep the air stone level. This will ensure bubble along the entire length of the stone. If the air stone stops working correctly remove it from the Aquarium and clean in warm water, or replace it. Check the operation of you air pump as the diaphragms or flapper valves inside the air pump may have deteriorated.
in 35 offers
The lowest price for Aqua One Airstone - 2.5cm (2 Pack) right now is $1.75 at Apex Aquatic, compared across 32 retailers.
The all-time low was $1.20 on 27 July 2025 — today's price is 46% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 8 June 2026.
Last updated at 08/06/2026 22:12:36
Aqua One Airstone 2.5cm / 2pk
Aqua One Air Stone 2.5cm 2 Pack
14-day returns
Aqua One Cylindrical Air Stone 2.5cm
2" Air Stone carded each
Delivery between 15–19 June $15
Aqua One Airstone 1" 2 Pack
Aqua One 25mm 2pk Airstone – Oxygen & Water Flow
Delivery between 12–18 June $9.95
Aqua One Air Stone 2.5cm 2pk - Aquaristic Online
Delivery $14
Aqua One Airstone 2.5cm 2pk (1")
30-day returns
AQUA ONE AIR STONE 1" 2pk
Delivery between 15–19 June $14.90
Aqua One Airstone 1 Inch/2.5cm (2pk) (10144)
Delivery $9.99
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originally posted on ebay.com
Plenty of small bubbles produced by these stones. Good value item.
originally posted on ebay.com
Good low rate (2watt) aerators a tad expensive -1
originally posted on mypetwarehouse.com.au
Great quality and fine bubbles to keep my fish healthy.
| Dimensions | 2.5cm |
| What Am I Buying | 2 x Aqua One Airstone 2.5cm |
Aqua One Airstone 2.5cm / 2pk
Aqua One Air Stone 2.5cm 2 Pack
14-day returns
Aqua One Cylindrical Air Stone 2.5cm
2" Air Stone carded each
Delivery between 15–19 June $15
Aqua One Airstone 1" 2 Pack
Plenty of small bubbles produced by these stones. Good value item.
Good low rate (2watt) aerators a tad expensive -1
Great quality and fine bubbles to keep my fish healthy.
The colour of the airstones is more true blue than dark blue. It doesn't blend well in my aquarium, but does the job.
Aqua One, great product
| Dimensions | 2.5cm |
| What Am I Buying | 2 x Aqua One Airstone 2.5cm |
