Aquarium filter media
Aqua One Carbon Cartridge 1c (25001C)
25001C
Fits 34 models · replace every 2 months
Wrong part, or your model missing? Tell us. A person checks every report.
GenuineGenuine Aqua One
$9.44 each
2-pack $18.88
Aquarium Spare Parts · 7 NovLowest genuine · Aquarium Spare Parts · checked 7 Nov
CompatibleCompatible option
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No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by Aqua One. Compatible: another brand.Genuine is made by Aqua One. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest price · $9.44 each · 2-pack $18.88
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AUD, before delivery. Each price shows when it was checked.
Genuine Aqua One
2 sellers
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Not due yet?
Get a nudge when your aquarium filter media is due — it's every 2 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the 25001C aquarium filter media
Watch the guide or follow the steps.
- 1Unplug the filter, or the tank's filter pump and any other equipment in the tank, as Aqua One advises.
- 2Take out the carbon cartridge: lift an internal filter out and pull off its casing; lift a top filter's lid and spray bar; lift the lid and light unit off a built-in filter compartment.
- 3Rinse sponges gently in a bucket of water taken from the aquarium, never under the tap: Aqua One says tap water kills the filter's beneficial bacteria.
- 4Fit a new carbon cartridge every 6–8 weeks. Rinse new carbon first; Aqua One allows tap water for new carbon, never for sponges.
- 5Put the media back as it was. Plug the filter back in and check that water flows.
Every number this part goes by
- Retail name:
- 1C
- Retail name:
- 25001C
Sellers list any of these; they are the same part.
Will it fit your appliance?
Type your model number and we'll check it against the makers' lists.
Fits these 34 Aqua One models
Aqua One34 models
- AquaBac 100
- AquaNano 25
- AquaNano 30
- AquaNano 40
- AquaStart 500
- AquaStyle 380
- AquaVis 130
- Arc 16
- Arc 30
- Arc 46
- Aspect 36
- Aura 13.5L
- Betta Condo Duo
- Betta Condo Mono
- Betta Condo Trio
- Dynamic 55
- Dynamic 58
- Flora 36
- Flora 42
- Focus 25
- Focus 36
- Focus 65
- Horizon View 130
- Horizon View 182
Show the other 10 Aqua One models
AquaStart 320. Aqua One lists carbon cartridge 1c (25001C) for the discontinued AquaStart 320/320T and 55c (25055C) for the AquaStart 320: check the cartridge in your filter.
Common questions
- What does the 25001C fit?
- The Aqua One Carbon Cartridge 1c (25001C) fits 34 Aqua One models, including the AquaBac 100, AquaNano 25 and AquaNano 30. Every one is listed on this page.
- How often should I replace the 25001C?
- Every 2 months. It works less well as the filter fills up, so it's worth doing on time.
- Where can I buy the 25001C in Australia?
- We track 2 Australian sellers for the 25001C; the lowest listed price when we last checked was A$9.44 at Aquarium Spare Parts. Prices are re-checked daily and dated on this page.
- How do I fit the 25001C?
- No tools, a few minutes: 5 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- Spent carbon stops removing odours and discolouration, and clogged pads slow the flow, so the filter moves less water through the tank.
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