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 Max for 206/306, 207/307 Canister Filter, 2-Pack

A188

Fits 4 models

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

GenuineGenuine Fluval

$6.44 each

2-pack $12.88

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

CompatibleCompatible option

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No compatible seller tracked yetNo compatible seller tracked yet

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 price · $6.44 each · 2-pack $12.88

Aquarium Spare Parts. Every seller we track is listed below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.

Open Aquarium Spare Parts · $6.44 each · 2-pack $12.88

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

Compatible options

1 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$6.44 each2-pack $12.88OpenGo to seller

Open cheapest seller · $6.44 each · 2-pack $12.88

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 size.

How to change the A188 aquarium filter media

Watch the guide or follow the steps.

Fluval 07 Canister Filter Series | General Maintenance · Fluval Aquatics (official)

1Unplug the filter and close the hose valves (the AquaStop valve on 06 and 07 series filters) 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 Max 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-188 · A188

Retail name:: A-188
Retail name:: A188

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 4 Fluval models206, 207, 306, 307

Fluval4 models

Bio-Foam Max: the denser Bio-Foam Fluval lists for this filter; use it in place of standard Bio-Foam.

Common questionsWhat does the A188 fit? · Where can I buy the A188 in Australia? · How do I fit the A188?

What does the A188 fit?: The Fluval Bio-Foam Max for 206/306, 207/307 Canister Filter, 2-Pack (part A188) fits 4 Fluval models, including the 206, 207 and 306. Every one is listed on this page. Compatible filters made to the same specification also fit.
Where can I buy the A188 in Australia?: We track 2 Australian sellers for the A188; the lowest listed price when we last checked was A$6.44 at Aquarium Spare Parts. Prices are re-checked daily and dated on this page.
How do I fit the A188?: 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 A188 match? . Reports go to a person, not a bot.