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.

Aquarium filter media

Fluval Bio-Foam for FX4/FX5/FX6 Canister Filter, 3-Pack

A228

Fits 3 models

Wrong part, or your model missing? Tell us. A person checks every report.

GenuineGenuine Fluval

$11.63 each

3-pack $34.88

Aquarium Spare Parts · 30 OctLowest genuine · Aquarium Spare Parts · checked 30 Oct

CompatibleCompatible option

$6.15 each

6-pack $36.88

Aquarium Spare Parts · 30 OctAquarium Spare Parts · checked 30 Oct

Check sellerCheck seller details

Genuine: made by Fluval. Compatible: another brand.Genuine is made by Fluval. Compatible is made by another brand. Check the seller's page for the size and models it fits.

Lowest compatibleLowest compatible price · $6.15 each · 6-pack $36.88

Aquarium Spare Parts. Compare with genuine below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.

Open Aquarium Spare Parts · $6.15 each · 6-pack $36.88

Compare 3 listings from 2 sellers

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

Compatible options

2 sellers

Aquarium Spare PartsCompatible · checked 30 OctCompatible · Lowest compatiblechecked 30 Oct$6.15 each6-pack $36.88OpenGo to seller

Amazon AUCompatible · no price recordedCompatibleno price recordedSee priceOpenGo to seller

Genuine Fluval

1 seller

Aquarium Spare PartsGenuine · checked 30 OctGenuine part · Lowest genuinechecked 30 Oct$11.63 each3-pack $34.88OpenGo to seller

Open cheapest seller · $6.15 each · 6-pack $36.88

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 the filter's manual says; Fluval gives no set interval for this foam.

How to change the A228 aquarium filter media

Watch the guide or follow the steps.

No clear video for this part yet. The steps cover it.

1Unplug the filter and close the hose valves before you disconnect it.
2Open the filter and lift the media baskets out of the canister.
3Rinse foam in water from the aquarium; rinse BIOMAX in aquarium water only: Fluval says never to rinse it with tap water.
4Fit the new Bio-Foam where the old media sat. Fluval says not to replace all filter media at the same time.
5Put the baskets back in the same order, close the filter, then prime and restart it as its manual describes.

Every number this part goes byA-228 · A228

Retail name:: A-228
Retail name:: A228

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.

Your appliance model

Fits these 3 Fluval modelsFX4, FX5, FX6

Fluval3 models

Common questionsWhat does the A228 fit? · Where can I buy the A228 in Australia? · How do I fit the A228?

What does the A228 fit?: The Fluval Bio-Foam for FX4/FX5/FX6 Canister Filter, 3-Pack (part A228) fits the Fluval FX4, FX5 and FX6. Compatible filters made to the same specification also fit.
Where can I buy the A228 in Australia?: We track 2 Australian sellers for the A228; the lowest listed price when we last checked was A$6.15 at Aquarium Spare Parts. Prices are re-checked daily and dated on this page.
How do I fit the A228?: 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 A228 match? . Reports go to a person, not a bot.