FitMatch

The Aqua One IFX 100 takes the Aqua One Sponge 190s (25190S) for IFX 100 as its filter media; Australian sellers list it from A$10.88 as of 7 November 2026. Fitment confirmed against the manufacturer's compatibility list.

Aqua One IFX 100

Your aquarium filter

Aquarium filter

Confirmed against Aqua One's list

Not yours? Change
25190S

Takes the 25190S

Filter media · check the code on your old filter.

Other Aqua One aquarium filters and their replacement media

The 25190S fits the IFX 100 only. These Aqua One models take a different filter media:

Genuine

$10.88

Aquarium Spare Parts · 7 Nov

Compatible

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No compatible seller tracked yet

Genuine: made by Aqua One. Compatible: another brand.

Lowest price · $10.88

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This aquarium filter also takes a carbon filter

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AUD, before delivery. Each price shows when it was checked.

Aquarium Spare PartsGenuine · checked 7 Nov$10.88Open
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How long it lasts

Replace it when it clogs, breaks down or no longer holds its shape, Aqua One says; until then rinse it in a bucket of aquarium water each time you clean the filter.

How to change the filter media in your Aqua One IFX 100

Watch the guide or follow the steps.

Aqua One IFX Internal Filters · Aqua One (official)
  1. 1Unplug the filter and any other equipment in the tank, as Aqua One advises and lift it out of the tank.
  2. 2Pull the filter casing off the motor and take out the sponge, and the carbon cartridge or pouch if your filter has one.
  3. 3Rinse the sponge gently in a bucket of water taken from the aquarium to flush out solid waste, then throw that water away. Aqua One says never to rinse it under the tap: chlorine kills the filter's bacteria.
  4. 4Put the sponge back, or fit a new one once the old one blocks up or breaks down.
  5. 5Put the media back in the casing, refit it to the motor, put the filter back in the tank and plug it in. Check that water flows.
Every number this part goes by
Retail name:
190S
Retail name:
25190S

Sellers list any of these; they are the same part.

About your IFX 100

Aqua One aquarium filter — IFX internal filter. Its filter media is the Sponge 190s (25190S) for IFX 100, part 25190S.

Other media the maker lists for this filter: Aqua One Sponge Phosphate 191s (25191S) for IFX 100. Phosphate-removing sponge set Aqua One lists for this filter; use it in place of a standard sponge if you need it.

Also in this aquarium filter: Aqua One Carbon Cartridge 190c (25190C) for IFX 100 (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 this Aqua One model

Aqua One1 model

Common questions
Which filter media fits the Aqua One IFX 100?
The Aqua One IFX 100 takes the Aqua One Sponge 190s (25190S) for IFX 100.
Where can I buy the 25190S in Australia?
We track 1 Australian seller for the 25190S; the lowest listed price when we last checked was A$10.88 at Aquarium Spare Parts. Prices are re-checked daily and dated on this page.
How do I fit the 25190S in an Aqua One IFX 100?
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.

Something looks wrong with the IFX 100 match? . Reports go to a person, not a bot.