The Fluval Betta Aquarium Kit 10L takes the Fluval Foam Filter Block for Spec/Evo/Flex/Betta Aquarium Kit (part A1376) as its filter media; Australian sellers list it from A$13.88 as of 8 November 2026. Fitment confirmed against the manufacturer's compatibility list.
Your aquarium filter
Fluval Betta Aquarium Kit 10L
Aquarium filter
Confirmed against Fluval's listConfirmed against Fluval's own compatibility list
Not yours? Change
Takes the A1376 filter media
Foam Filter Block for Spec/Evo/Flex/Betta 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 A1376
Filter media · check the code on your old filter.
Other Fluval aquarium filters that take the A1376
GenuineGenuine Fluval
$13.88
Aquarium Spare Parts · 8 NovLowest genuine · Aquarium Spare Parts · checked 8 Nov
CompatibleCompatible option
See seller
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 · $13.88
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.
This aquarium filter also takes a biological media
- Fluval BIOMAX for Spec/Evo/Flex/Betta Aquarium Kit, 60 gOpen Aquarium Spare Parts$7.88
Separate from the filter media. Reduces ammonia and nitrite, via the bacteria living on it (biological media). Replace every 3 months.
Compare 4 listings from 2 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
1 seller
Genuine Fluval
3 listings from 2 sellers
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 part.
How to change the filter media in your Fluval Betta Aquarium Kit 10L
Watch the guide or follow the steps.
- 1Unplug the pump and lift off the cover of the filter compartment at the back of the tank.
- 2Lift the media (foam block, carbon and BIOMAX) out of the filter chambers.
- 3Rinse the foam block in water from the aquarium; Fluval says to rinse BIOMAX monthly in aquarium water.
- 4Fit the new foam filter block where the old media sat. Fluval says not to replace all filter media at the same time.
- 5Put the media back in the same chambers, refit the cover and plug the pump back in.
Every number this part goes by
- Retail name:
- A-1376
- Retail name:
- A1376
Sellers list any of these; they are the same part.
About your Fluval Betta Aquarium Kit 10L
Fluval aquarium filter — Betta aquarium kit. Its filter media is the Foam Filter Block for Spec/Evo/Flex/Betta Aquarium Kit, part A1376.
Also in this aquarium filter: Fluval BIOMAX for Spec/Evo/Flex/Betta Aquarium Kit, 60 g (every 3 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 6 Fluval models
Common questions
- Which filter media fits the Fluval Betta Aquarium Kit 10L?
- The Fluval Betta Aquarium Kit 10L takes the Fluval Foam Filter Block for Spec/Evo/Flex/Betta Aquarium Kit (part A1376). Compatible filters made to the same specification also fit.
- Where can I buy the A1376 in Australia?
- We track 2 Australian sellers for the A1376; the lowest listed price when we last checked was A$13.88 at Aquarium Spare Parts. Prices are re-checked daily and dated on this page.
- How do I fit the A1376 in a Fluval Betta Aquarium Kit 10L?
- 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 Betta Aquarium Kit 10L match? . Reports go to a person, not a bot.