How often sbould i change these?

The instruction booklet says every 6 months but I only change it when the sponge can no longer be cleaned or does not spring back when squeezed. I would say maybe 12-18 months. Don't do all at once either - I do half one clean and the rest the following clean.

so i have bought the 306 with no media is this all the media i need for it to work effectively? as ive never used and external filter before. tia

This will fill the foam holder and the fist canister of 3. There are 2 canisters that will need ceramic beads and charcoal etc....or whatever media you choose to use.

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Genuine Fluval 307 Bio-Foam External Canister Filter Media Value Pack

Product ID: 244953561

Details

Brand
Fluval
Item form
Foam
Manufacturer
Rolf C Hagen
Pet Type
Fish
Unit count
1 count

🦠Supports beneficial bacteria growth

🧽30% more filtration surface

♻️6-month supply for long-lasting use

$63.90

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Description

🧼 Elevate your aquarium’s clarity with Fluval’s ultimate bio-foam filtration power!

TRUSTED BRAND QUALITY - Backed by Fluval’s 7-year warranty and 4.7-star rating from over 1,600 enthusiasts—join the elite fish-keeping community.
TAILORED FOR FLUVAL 306 307 - Precision-engineered media fits perfectly, optimizing your canister filter’s effectiveness and lifespan.
DUAL ACTION FILTRATION POWER - Combines mechanical and biological filtration to maintain a healthy aquatic ecosystem effortlessly.
EXTENDED FRESHNESS GUARANTEE - A 6-month media supply ensures your Fluval 306/307 filter runs at peak performance without frequent replacements.
MAXIMIZED FILTRATION EFFICIENCY - Bio-Foam Max’s rippled design boosts debris capture by 30%, keeping your aquarium crystal clear.

The Fluval 306/307 Filter Media Bio-Foam Value Pack offers premium biological and mechanical filtration media designed specifically for Fluval 306 and 307 canister filters. Featuring Bio-Foam Max with a rippled surface for 30% more debris capture, Bio-Foam+ for enhanced beneficial bacteria growth, and a 6-month supply suitable for both freshwater and saltwater aquariums, this pack ensures optimal filter performance and healthier aquatic environments.

Specifications

ASIN	B08FYSKW1F
Allergen Information	Allergen-Free
Best Sellers Rank	4,875 in Pet Supplies ( See Top 100 in Pet Supplies ) 23 in Aquarium Filter Accessories
Brand	Fluval
Brand Name	Fluval
Customer Reviews	4.7 out of 5 stars 1,696 Reviews
Global Trade Identification Number	00015561103367, 10015561103364
Included Components	Bio-Foam Max: 2-in-1 Biological and Mechanical Filtration Media, Bio-Foam: Mechanical Filtration Media, Bio-Foam+: Mechanical and Biological Filtration Media
Item Form	Foam
Item Type Name	Fluval 306/307 Filter Media Bio-Foam Value Pack
Item form	Foam
Manufacturer	Rolf C Hagen UK Ltd
Manufacturer Part Number	A336
Model Number	A336
Number of Items	1
Pet Type	Fish
Product Warranty	7 year manufacturer
Target Species	Fish
UPC	015561103367
Unit Count	1 count
Unit count	1 count

Reviews

K**E

Great product

Great value for money

23.02.2026

S**H

Fluval bio foam filters

The original bio foam filters I bought as they were on special offer. Good product. Other wise I would have used unbranded.

15.05.2026

M**B

Quality but check the box contents

Fluval filters replacements. Quality product. I offset the filter change so that only half of the filters are changed. Each side is changed every 6 months. These do a great job. Simple to change as well. Always check the content of the box though, as I have received a box with missing foam before.

15.10.2025

D**.

Quality product

Delivered by royal mail ??? Arrived within a few days It is a quality item

11.12.2023

M**N

good value

good value for money

10.12.2025

P**R

Well made

Well made and does a excellent job along with other materials in my fluval 307 filter

8.07.2025

I**A

Quality staff

Good quality stuff, and delivery

5.12.2025

M**N

Filter

Always good stuff

9.12.2025

E**.

My humble opinion

Great product gets the job done

25.01.2025

J**N

Funkar perfa👍👍

29.04.2026

J**Y

This kit makes your filter like new

What a great kit for the replacement sponges in your fluval canister filter

3.05.2026

A**S

جيد

مناسب

6.05.2026

A**R

Esponja

Muy bien quedan justo a la medida, yo hago el cambio de esponjas cada dos años

27.05.2026

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$63.90

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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