The Fluval Edge 23L takes the Fluval Foam & BIOMAX Renewal Kit for Edge Aquarium Kit (part A1389) as its filter media; Australian sellers list it from A$10.88 as of 26 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your aquarium filter
Fluval Edge 23L
Aquarium filter
Confirmed against Fluval's listConfirmed against Fluval's own compatibility list
Not yours? Change
Takes the A1389 filter media
Foam & BIOMAX Renewal Kit for Edge Aquarium Kit · check the code printed on your old filter before ordering.
Your aquarium filter
Aquarium filter
Confirmed against Fluval's listConfirmed against Fluval's own compatibility list
Takes the A1389
Filter media · check the code on your old filter.
Other Fluval aquarium filters that take the A1389
GenuineGenuine Fluval
$10.88
Amazon AU · 26 OctLowest genuine · Amazon AU · checked 26 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 · $10.88
Amazon AU. 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.
Other parts this aquarium filter takes
- Fluval Carbon Clean & Clear Renewal Sachet for Edge Aquarium Kit, 45 g, 3-PackOpen Amazon AU$4.29 each · 3-pack $12.88
The carbon filter. Separate from the filter media. Reduces heavy metals, odours, discolouration and pollutants (Fluval wording for its kit carbon). Replace every month.
Compare 3 sellers - Fluval Pre-Filter Sponge for Edge Aquarium KitOpen Aquarium Spare Parts$3.48 each · 6-pack $20.88
The intake sponge. Separate from the filter media. Reduces debris at the intake.
Compare 1 seller
AUD, before delivery. Each price shows when it was checked.
Opens Amazon AU 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 part.
How to change the filter media in your Fluval Edge 23L
Watch the guide or follow the steps.
No clear video for this part yet. The steps cover it.
- 1Unplug the filter.
- 2Open the Edge filter and take out the media.
- 3Rinse foam in water from the aquarium.
- 4Fit the new foam and BIOMAX renewal kit where the old media sat. Fluval says not to replace all filter media at the same time.
- 5Close the filter and plug it back in.
Every number this part goes by
- Retail name:
- A-1389
- Retail name:
- A1389
Sellers list any of these; they are the same part.
About your Fluval Edge 23L
Fluval aquarium filter — Edge aquarium kit. Its filter media is the Foam & BIOMAX Renewal Kit for Edge Aquarium Kit, part A1389.
Also in this aquarium filter: Fluval Carbon Clean & Clear Renewal Sachet for Edge Aquarium Kit, 45 g, 3-Pack (every month), Fluval Pre-Filter Sponge for Edge Aquarium Kit.
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.
Common questions
- Which filter media fits the Fluval Edge 23L?
- The Fluval Edge 23L takes the Fluval Foam & BIOMAX Renewal Kit for Edge Aquarium Kit (part A1389).
- Where can I buy the A1389 in Australia?
- We track 1 Australian seller for the A1389; the lowest listed price when we last checked was A$10.88 at Amazon AU. Prices are re-checked daily and dated on this page.
- How do I fit the A1389 in a Fluval Edge 23L?
- 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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