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Specifications

Brand: Fluval

Full description

Fish tanks ask for quiet, steady maintenance, and filter media is the part that keeps working between those jobs. These Fluval inserts give the Mini Underwater Filter a replacement foam section rather than asking you to adapt something that was made for another chamber.

The foam is ridged to maximise surface area for bacterial colonisation. It is specified for use with the Fluval Mini Underwater Filter.

Foam media for the Fluval Mini Underwater Filter
Ridged foam
Designed to maximise surface area for bacterial colonisation
Two inserts in the pack

What the label does not say. Fluval has not supplied the insert dimensions, a replacement timetable or cleaning instructions with this listing, so check the fit in your Mini Underwater Filter before ordering and follow the filter maker's maintenance guidance.

Who it's for: fishkeepers using a Fluval Mini Underwater Filter who need the matching foam media for its filter chamber.

Delivery

Tracked UK delivery — your estimated arrival date is shown above and updates automatically. Standard delivery £2.99, and free on orders over £39. Full details on our delivery information page. Delivery information

Returns

30 days to change your mind, no interrogation. Items need to be unused (sensory products unopened, for hygiene). Full details on our delivery & returns page.

Payment

Secure checkout by Stripe — cards, Apple Pay, Link and Klarna. We never see or store your card details.

Common questions

What filter does this fit?

It is foam media for use with the Fluval Mini Underwater Filter.

What is the foam like?

It is ridged foam designed to maximise surface area for bacterial colonisation.

How many inserts are included?

The pack contains two inserts.

What are the insert dimensions?

Dimensions have not been supplied with this listing; check the insert against your Fluval Mini Underwater Filter.

How long does delivery take?

Your estimated delivery date is shown above and updates automatically. UK orders are sent tracked — standard delivery is £2.99, and free on orders over £39.

How do I track my order?

As soon as your order is dispatched we email you a tracking link, so you can follow it all the way to your door.

What if I need to return my order?

You have 30 days from delivery to change your mind. Just email us with your order number and we’ll send the return steps the same working day — see our delivery & returns page for details.

Fluval Mini Foam Insert

Ridged foam filter inserts for the Fluval Mini Underwater Filter, supplied as a two-pack

£6.49

Delivery £2.99 · free over £39

£6.49

Delivery £2.99 · free over £39
30-day returns · free return postage

· tracked · UK mainland estimate · 30-day promise

UK delivery £2.99 · free over £39

Secure checkout by Stripe · Card, Apple Pay & Klarna

What the label does not say

Fluval has not supplied the insert dimensions, a replacement timetable or cleaning instructions with this listing, so check the fit in your Mini Underwater Filter before ordering and follow the filter maker's maintenance guidance.

Secure checkout

Tracked delivery

Easy returns

Why we chose it

The deciding detail is the named filter fit: this is made for the Fluval Mini Underwater Filter, with ridges for bacterial colonisation. A two-pack also gives the filter keeper a spare insert in the same purchase.

— Matt, founder

Why buy from Giddy Pets?

Carefully selected by pet ownersEvery product is chosen and quality-checked by people who actually live with dogs, cats and small pets.
Tracked delivery on every orderUK delivery with tracking as standard — and it’s free when you spend over £39.
UK customer supportReal, UK-based humans read every email — usually Matt, the founder. No bots, no ticket numbers.
Easy returns30 days to change your mind, no interrogation. If it’s not right, we’ll make it right.