How often should I change a Fluval filter media?

Every month for the Carbon for Spec/Evo/Flex Aquarium Kit, 45 g, 3-Pack (A1377), the most common Fluval carbon filter here. Each model page shows the interval for its own carbon filter.

What happens if I don't change the carbon filter?

Spent carbon stops removing odours and discolouration, and clogged pads slow the flow, so the filter moves less water through the tank.

Does Fluval make a compatible filter media?

Fluval makes the genuine filter media. Compatible filter media for Fluval models are made by other companies to fit the same models, and Australian sellers we track list both; each part page shows the genuine and compatible prices side by side.

Fluval filter media

Which replacement sponges, pads and cartridges each of the 33 Fluval aquarium filters sold in Australia takes, with dated prices from 3 Australian sellers, genuine and compatible side by side.

Showing 21 of 33 Fluval models · grouped by part

Foam Filter Block for Spec/Evo/Flex/Betta Aquarium Kittakes A1376

Bio-Foam for 206/306, 207/307 Canister Filter, 2-Packtakes A222

Bio-Foam for FX4/FX5/FX6 Canister Filter, 3-Packtakes A228

Bio-Foam for 106, 107 Canister Filter, 2-Packtakes A220

Bio-Foam for 406, 407 Canister Filter, 2-Packtakes A226

BIOMAX for AC70/AC110 Power Filter, 125 gtakes 19664

BIOMAX for AC20/AC30 Power Filter, 42 gtakes 19660

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How to change the media in your Fluval filter

Steps for the Carbon for Spec/Evo/Flex Aquarium Kit, 45 g, 3-Pack (A1377), the carbon filter 7 Fluval models take. Change it every month.

YOUR FIRST AQUARIUM, DONE RIGHT | Fluval Spec Series · Fluval Aquatics (official)

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 new carbon about every month (Fluval says carbon lasts about a month in an aquarium).
5Put the media back in the same chambers, refit the cover and plug the pump back in.

Get a reminder when your Fluval filter media is due

One email two weeks before, no newsletter. Type the model from the sticker and we set the date for that model.

Common questions

How often should I change a Fluval filter media?: Every month for the Carbon for Spec/Evo/Flex Aquarium Kit, 45 g, 3-Pack (A1377), the most common Fluval carbon filter here. Each model page shows the interval for its own carbon filter.
What happens if I don't change the carbon filter?: Spent carbon stops removing odours and discolouration, and clogged pads slow the flow, so the filter moves less water through the tank.
Does Fluval make a compatible filter media?: Fluval makes the genuine filter media. Compatible filter media for Fluval models are made by other companies to fit the same models, and Australian sellers we track list both; each part page shows the genuine and compatible prices side by side.

Brand names describe compatibility only; FitMatch is independent of Fluval. Fitment sources are recorded on every model page.