The Fluval AquaClear 110 takes the Fluval BIOMAX for AC70/AC110 Power Filter, 125 g (part 19664) as its biological media; replace it every 3 months; Australian sellers list it from A$27.88 as of 30 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your aquarium filter
Fluval AquaClear 110
Aquarium filter
Confirmed against Fluval's listConfirmed against Fluval's own compatibility list
Not yours? ChangeSave it · remind me every 3 months
Takes the 19664 biological media
BIOMAX for AC70/AC110 Power Filter, 125 g · replace every 3 months · 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 19664
Biological media · every 3 months · check the code on your old filter.
Other Fluval aquarium filters that take the 19664
GenuineGenuine Fluval
$27.88
Aquarium Spare Parts · 30 OctLowest genuine · Aquarium Spare Parts · checked 30 Oct
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 · $27.88
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.
Other parts this aquarium filter takes
- Fluval Carbon for AC70/AC110 Power Filter, 145 gOpen Aquarium Spare Parts$6.96 each · 3-pack $20.88
The carbon filter. Separate from the biological media. Reduces odours, discolouration and dissolved impurities (carbon). Replace every month.
Compare 2 sellers - Fluval Intake Strainer Sponge for AC70/AC110 Power FilterOpen Aquarium Spare Parts$7.88
The intake sponge. Separate from the biological media. Reduces debris at the intake.
Compare 1 seller
AUD, before delivery. Each price shows when it was checked.
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Not due yet?
Get a nudge when your biological media is due — it's every 3 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the biological media in your Fluval AquaClear 110
Watch the guide or follow the steps.
- 1Unplug the filter.
- 2Lift the media basket out of the filter body.
- 3Rinse foam in water from the aquarium; rinse BIOMAX in aquarium water only: Fluval says never to rinse it with tap water.
- 4Replace the BIOMAX every 3 months, but not at the same service as the foam: Fluval says not to replace all filter media at the same time.
- 5Put the media basket back in the filter and plug it in.
Every number this part goes by
- Retail name:
- 19664
- Retail name:
- 19665
Sellers list any of these; they are the same part.
About your Fluval AquaClear 110
Fluval aquarium filter — AquaClear power filter (hang-on). Its biological media is the BIOMAX for AC70/AC110 Power Filter, 125 g, part 19664, changed every 3 months.
Also in this aquarium filter: Fluval Carbon for AC70/AC110 Power Filter, 145 g (every month), Fluval Intake Strainer Sponge for AC70/AC110 Power Filter.
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 2 Fluval models
Fluval2 models
Common questions
- Which biological media fits the Fluval AquaClear 110?
- The Fluval AquaClear 110 takes the Fluval BIOMAX for AC70/AC110 Power Filter, 125 g (part 19664).
- How often should I replace the biological media in my Fluval AquaClear 110?
- Every 3 months. It works less well as the filter fills up, so it's worth doing on time.
- Where can I buy the 19664 in Australia?
- We track 1 Australian seller for the 19664; the lowest listed price when we last checked was A$27.88 at Aquarium Spare Parts. Prices are re-checked daily and dated on this page.
- How do I fit the 19664 in a Fluval AquaClear 110?
- 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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