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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🧼 Elevate your aquarium’s clarity with the ultimate filtration power pack!

DUAL ACTION MEDIA - Combines mechanical and biological filtration for superior water quality and healthier aquatic life.
LONG LASTING VALUE PACK - A 6-month supply ensures consistent peak performance without frequent replacements.
VERSATILE COMPATIBILITY - Specifically engineered for Fluval 306/307 canister filters, perfect for both freshwater and saltwater tanks.
EASY MAINTENANCE INSTALLATION - Pre-cut pads fit seamlessly, making filter upkeep hassle-free for busy professionals.
MAXIMIZED FILTRATION EFFICIENCY - Rippled Bio-Foam Max pads increase 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 designed exclusively for Fluval 306 and 307 canister filters. Featuring Bio-Foam Max with a rippled surface for 30% more debris capture and Bio-Foam+ to support beneficial bacteria growth, this 6-month supply ensures your freshwater or saltwater aquarium stays pristine and healthy with minimal effort.

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Pet Type	Fish
Product Dimensions	24.5 x 17 x 7.8 cm; 117.93 g
Item model number	A336
Pet Life Stage	All Life Stages
Allergen Information	Allergen-Free
Colour	White
Size	Medium
Number of Items	1
Quantity	1
Special features	Long-lasting, easy to use
Specific Uses	Filtration
Batteries required	No
Batteries Included	No
Item Weight	118 g

Fluval306/307 Filter Media Bio-Foam Value Pack

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