The Aqua One Aura 13.5L takes the Aqua One Ceramic Cartridge 102c (25102C) as its biological media; Australian sellers list it from A$18.88 as of 7 November 2026. Fitment confirmed against the manufacturer's compatibility list.
Your aquarium filter
Aqua One Aura 13.5L
Aquarium filter
Confirmed against Aqua One's listConfirmed against Aqua One's own compatibility list
Not yours? Change
Takes the 25102C biological media
Ceramic Cartridge 102c (25102C) · check the code printed on your old filter before ordering.
Your aquarium filter
Aquarium filter
Confirmed against Aqua One's listConfirmed against Aqua One's own compatibility list
Takes the 25102C
Biological media · check the code on your old filter.
Other Aqua One aquarium filters that take the 25102C
GenuineGenuine Aqua One
$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 · $18.88
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This aquarium filter also takes a carbon filter
- Aqua One Carbon Cartridge 1c (25001C)Open Aquarium Spare Parts$9.44 each · 2-pack $18.88
Separate from the biological media. Reduces dissolved waste, odours and discolouration (activated carbon). Replace every 2 months.
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AUD, before delivery. Each price shows when it was checked.
Opens Aquarium Spare Parts in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Replace it as Aqua One advises: its ceramic media is designed to need no maintenance, and it should never be rinsed in tap water.
How to change the biological media in your Aqua One Aura 13.5L
Watch the guide or follow the steps.
No clear video for this part yet. The steps cover it.
- 1Unplug all the aquarium's equipment, then lift off the light unit and lid and put them somewhere safe.
- 2Open the filter compartment and take out the sponge and the cartridges (carbon, and ceramic if your tank has one).
- 3Take some water out of the aquarium and rinse the sponge and cartridges in it. Aqua One says never to rinse the sponge under the tap, as that kills the beneficial bacteria. If needed, siphon waste out of the filter chambers.
- 4Fit the new ceramic cartridge where the old one sat. Aqua One says never to rinse ceramic media in tap water.
- 5Refit everything, replace the lid and light unit, check your hands and plugs are dry, then turn the power back on and check the equipment over the next half hour.
Every number this part goes by
- Retail name:
- 102C
- Retail name:
- 25102C
Sellers list any of these; they are the same part.
About your Aqua One Aura 13.5L
Aqua One aquarium filter — Aura aquarium. Its biological media is the Ceramic Cartridge 102c (25102C), part 25102C.
Also in this aquarium filter: Aqua One Carbon Cartridge 1c (25001C) (every 2 months).
Where the model number is: The model is on the filter's lid, motor head or a label on its side (Fluval 307, Eheim Classic 2215). For a tank with a built-in filter, use the tank's name.
Fits these 13 Aqua One models
Common questions
- Which biological media fits the Aqua One Aura 13.5L?
- The Aqua One Aura 13.5L takes the Aqua One Ceramic Cartridge 102c (25102C).
- Where can I buy the 25102C in Australia?
- We track 1 Australian seller for the 25102C; the lowest listed price when we last checked was A$18.88 at Aquarium Spare Parts. Prices are re-checked daily and dated on this page.
- How do I fit the 25102C in an Aqua One Aura 13.5L?
- 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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