filter media
Worth a lookShows low returns (0.4%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.4%return rate — above 5% kills the launch gate
Competition
Great26%top-5 click share — an open shelf
Brand share
Good62%top-5 brand share — brands hold most of the demand
Price range
Good£3.11–£38.99cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good5.9%search→purchase rate — share of searches ending in a sale
Review moat
Good949.86avg incumbent reviews — the moat a new listing must climb
Avg price
Good£12.79avg listing price — sweet spot $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Okay+9.6%90-day search growth — must beat 0% to launch
Market size
Bad£73K£73K/yr · 96K searches
According to Flapen's Amazon United Kingdom niche tracking, filter media is a £73K/yr Amazon United Kingdom market (96K searches/yr). The top 5 brands hold 62% of demand. Verdict: Worth a look — 59/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
filter media market data
- Units sold / yr
- 6K–8K
- avg 0–100/product
- Revenue / yr
- £77K–£102K
- units × avg price
- Conversion rate
- 5.9%
- Avg BSR
- #214
- Page quality
- 0%
- Prime
- 68%
- Sponsored
- 72%
- Out of stock
- 6.6%
- Avg brand age
- 44 months
- Avg seller age
- 182 days
Competition & brand share
Clicks spread well past the top 5 (26% combined) — an open shelf where new products get seen.Brands
34 falling
Sellers
96
Top-5 brand share
62%
Top 20: 92%
Top-5 click share
26%
Top 20: 62%
Open market
35%
- Fluval35%
- Finest-Filters14%
- RUIENGCOMM5%
- Pawfly4%
- beaufan4%
- Finest Aquatics4%
Demand
Weekly Amazon search volume, last 29 weeks — +9.6% search growth over the last 90 days.Top filter media search terms
- pond filter media17K/yr
- fluval 307 filter media18K/yr
- filter media16K/yr
- aquarium filter media16K/yr
- pond media5K/yr
- filter media for fish tank8K/yr
- fish tank filter media6K/yr
- fluval filter media5K/yr
- fluval 407 filter media5K/yr
Top filter media products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Finest-Filters 1000g (1kg) Ceramic Filter Rings for Aquarium/Pond Filters
Finest-Filters£7.984.6★1,456 rev
Fluval 306/307 Filter Media Bio-Foam Value Pack
Fluval£14.754.7★2,904 rev
FLUVAL 307/407 Media Value Pack
Fluval£38.994.7★710 rev
RUIENGCOMM 100 Pcs Bio Porous Filter with Cotton Aquarium Fish Tank Bio Balls Filter Bio Balls Filter Water Filter Material Bio Media Bio Balls for Fish Tank Pond Aquarium Waterfall Fountain
RUIENGCOMM£4.404.4★73 rev
Fluval U2/U3/U4 Internal Filter Biomax 110g
Fluval£4.574.7★3,598 rev
Newest
by launch date
beaufan 38 Pack Aquarium Filter Media Kit Compatible with Fluval 306/307 Canister Filters Includes Bio Foam Activated Carbon & Ceramic Rings (2 Sets Maintenance Bundle)
beaufan£38.2419 rev
36 Pcs Filter Media Kit for Fluval 306/307 Canister Filters Include Water Polishing Pad Bio-Foam Pad Ammonia/Phosphate/Nitrite Remover 500g BioMax Media 500g Carbon Silicone Lube Filter Mesh Bag
Tofcbye£28.1642 rev
Aquarium Filter Media Balls 420g Aquarium Filter Media Accessories for Aquarium Filters Ceramic Rings Biological Filter Bioballs Biochemical Porous Filter for Fish Tank Pond Canister Filter
Bessy shop£7.699 rev
TOPZEA 6 Lb/2700g Aquarium Filter Media Ceramic Rings Premier Bio Filter Medias with Zipper Mesh Bags for Koi Pond Canister Fish Tank Filter Pure White
TOPZEA£12.30106 rev
Pawfly 3 Pack Aquarium Filter Media Pad for Fish Tank Filters Aquarium Filter Media Sponge Filter Floss for Sumps Ponds Hydroponics Fine Medium Coarse Foam Floss for Water Filtration 45cm L x 28cm W
Pawfly£8.98148 rev
Trending
90-day click momentum
allpondsolutions Pond Koi Filter Media Bio Cell Similar to K3 (K3 5 Litre Portion)
allpondsolutions£8.274.7★
Pisces Alfagrog Biological Filter Media 15kg 15000g 25 Litre Sack Porous Ceramic Stone Bio Media
Pisces£22.584.2★
FLUVAL U2 Filter Media Value Pack Brand Genuine Complete Internal Filter Kit
Fluval£14.384.7★
beaufan 38 Pack Aquarium Filter Media Kit Compatible with Fluval 306/307 Canister Filters Includes Bio Foam Activated Carbon & Ceramic Rings (2 Sets Maintenance Bundle)
beaufan£38.244.9★
Love Aquatics 5 Metre of 10-12 mm Thick Pond Filter Wool Koi Carp Pump Aquarium Pond Filter Media Medium Wool Floss
Love Aquatics£14.784.5★
What buyers say about filter media
What buyers praise and complain about, mined from review topics.What buyers love
“amazing filter quality”
“Good filter sponge”
“Good Price”
“Does what it says”
“Good fit”
“Clear pond water”
“Easy to use”
“easy to clean once dirty 10/10”
“The first thing I noticed is how fine and dense the material is, which helps trap debris, uneaten food, and other particles effectively, keeping the water clear”
“Useful for putting around the water pump in fish pond”
What buyers complain about
“Very tiny”
“NOT 10-12MM THICK DONT BUY”
“Picture is misleading”
“don't buy very cheap”
“expensive though”
“doesnt last long”
“Definitely not 1cm thick cant comment on product filter quality as not used”
“If you put it in any tank it would be clogged solid in a couple of hours”
“Scrunch up, not square or the size stated”
“will need a lot of cleaning”
Top return reasons
Common questions
- Is filter media profitable to sell on Amazon United Kingdom?
- The niche generates £73K/yr across 69 tracked products. 2 of 9 products launched in the last 360 days are still selling. 90-day search growth is +9.6%. Flapen's verdict: Worth a look (59/100).
- How competitive is the filter media niche?
- 34 brands and 96 sellers compete. The top 5 products take 26% of clicks and top 5 brands hold 62% of demand.
- What do buyers complain about in filter media?
- Top complaints mined from reviews: Size-Overall, Thickness, Advertised Vs Actual Product. The return rate is 0.4%.
- What does it cost to enter the filter media niche?
- Listings span £3.11–£38.99; the average listing price is £12.79 (sweet spot $15–$100). The average incumbent carries 950 reviews — the moat a new listing must climb.