External Filter Aquarium
FailDemand is soft, at -20.3% this quarter, so External Filter Aquarium is a Fail.
- Flapen Score
- 49 / 100Ranks 458 of 875 Pet Supplies niches · −1 vs the category median of 5049
- Market size
- £153K/yr151K searches / yr
- 90-day growth
- -20.3%search demand this quarter
- Competition
- 60%top-5 click share · 10 brands · 46 sellers
Flapen Score
External Filter Aquarium against its category
The dotted line is the Pet Supplies average. Past it, External Filter Aquarium is stronger. Inside it, weaker.
Market
The External Filter Aquarium market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for External Filter Aquarium 151K times last year and spent an estimated £153K. The top 5 brands take 87% of clicks. Flapen scores it 49 out of 100, a Fail.
01 · Demand
An estimated 1.9% of those searches ended in a purchase.
Shoppers searched for this 151K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 1.9% of those searches ended in a purchase. Searches in the last 90 days moved -20.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated £153K a year.
- Searches, last 12 months
- 151K
- Growth, 90 days vs prior 90
- -20.3%
- Conversion, latest week
- 1.9%
- Market size, estimated
- £153Ka year
- Peak month
- February1.6× the quietest month
- Top search term
- external fish tank filter22K searches a year
02 · Price
A sale here is worth £53.40.
Listings sell for £53.40 on average, from £24.32 to £98.75. Amazon reports units sold in ranges. This niche sold 2K to 2K a year. The average listing sells 0 to 100 of them. At £53.40 that is £0 to £5K a year per listing.
- Average price
- £53.40inside the $15 to $100 sweet spot
- Price range
- £24.32–£98.75
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 2K–2K
- Units per listing a year
- 0–100
- Revenue per listing a year
- £0–£5K
- Returns
- 1.4%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is ads.
91% of listings pay for placement with sponsored ads. 77% ship with Prime. On an average day, 8.5% of listings are out of stock. The average listing ranks #115 within Fish & Aquatic Pets. It carries 943 reviews at 4.08 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 91%
- Prime listings
- 77%
- Out of stock, average day
- 8.5%
- Average rank
- #115in Fish & Aquatic Pets
- Average rating
- 4.08 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 943per listing
- Listings tracked
- 22
04 · Newcomers
0 of last year's 8 launches cleared the first-year sales bar.
8 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 76 months on average, so the names here are established.
- Launched, last 12 months
- 8
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 76 months
Products
Top External Filter Aquarium products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 29, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
allpondsolutions EF-150 Aquarium External Fish Tank Water Filter for Coldwater or Tropical Aquariums for Tanks Up to 150 Litres Includes Filter Media hose and Spray Bar - Full Kit.
- Price
- £28.77
- Rating
- 4.2/5
- Reviews
- 3,303
- Age
- 9y ago

allpondsolutions 1000EF Aquarium External Fish Tank Water Filter for Coldwater Tropical or Marine Aquariums for Tanks Up to 400 Litres Includes Filter Media hose and Spray Bar - Full Kit.
- Price
- £53.39
- Rating
- 4.4/5
- Reviews
- 3,919
- Age
- 16y ago

Fluval 107 External Filter 1 kg
- Price
- £87.61
- Rating
- 4.4/5
- Reviews
- 1,724
- Age
- 7y ago

Fluval 207 External Filter
- Price
- £98.75
- Rating
- 4.5/5
- Reviews
- 3,182
- Age
- 7y ago

Fishnanny External Fish Tank Filter Ultra-Quiet External Aquarium Filter Canister with Filter MediaCanister filter Aquarium Cartridge Include Sponge Bio-ball Activated Carbon 18W for 250L Aquariums
- Price
- £74.61
- Rating
- 4.5/5
- Reviews
- 14
- Age
- 7mo ago
Trending
estimated 90-day click momentum
1400L/H Ultra-Silent External Fish Tank Filter Canister with Adjustable Flow Rate Multiple Bio-Function External Aquarium Filter with Filter Sponge Activated Carbon Bio-Ball for Fresh & Saltwater
- Price
- £76.63
- Rating
- 3.6/5
- Reviews
- 4
- Age
- 1mo ago

Fishnanny External Filter Aquarium mit DC Controller & Feeding Pause Mode Quiet Adjustable Flow External Fish Tank Filters 25dB 5-Stage Canister Filter with Sponge & Quartz-Ball for Fresh/Saltwater
- Price
- £65.03
- Rating
- 4.2/5
- Reviews
- 11
- Age
- 6mo ago

Fishnanny External Fish Tank Filter Ultra-Quiet External Aquarium Filter Canister with Filter MediaCanister filter Aquarium Cartridge Include Sponge Bio-ball Activated Carbon 18W for 250L Aquariums
- Price
- £74.61
- Rating
- 4.5/5
- Reviews
- 14
- Age
- 7mo ago

hygger External Filter Aquarium 9W Dual Flow Water Filter 450L/H Hang On Aquarium Filter for 27-74L Fish Tank Collection Waste Discharge for Freshwater Saltwater
- Price
- £33.60
- Rating
- 3.9/5
- Reviews
- 13
- Age
- 7mo ago

AQQA External Aquarium Filter 1200L/h Adjustable Canister Filter Aquarium External Filter for Tanks up to 250L - Includes 3-Stage Filtration & Complete Accessories
- Price
- £54.54
- Rating
- 4.3/5
- Reviews
- 41
- Age
- 11mo ago
Newest
by launch date
1400L/H Ultra-Silent External Fish Tank Filter Canister with Adjustable Flow Rate Multiple Bio-Function External Aquarium Filter with Filter Sponge Activated Carbon Bio-Ball for Fresh & Saltwater
- Price
- £76.63
- Rating
- 3.6/5
- Reviews
- 4
- Age
- 1mo ago

Fishnanny External Filter Aquarium mit DC Controller & Feeding Pause Mode Quiet Adjustable Flow External Fish Tank Filters 25dB 5-Stage Canister Filter with Sponge & Quartz-Ball for Fresh/Saltwater
- Price
- £65.03
- Rating
- 4.2/5
- Reviews
- 11
- Age
- 6mo ago

hygger External Filter Aquarium 9W Dual Flow Water Filter 450L/H Hang On Aquarium Filter for 27-74L Fish Tank Collection Waste Discharge for Freshwater Saltwater
- Price
- £33.60
- Rating
- 3.9/5
- Reviews
- 13
- Age
- 7mo ago

Fishnanny External Fish Tank Filter Ultra-Quiet External Aquarium Filter Canister with Filter MediaCanister filter Aquarium Cartridge Include Sponge Bio-ball Activated Carbon 18W for 250L Aquariums
- Price
- £74.61
- Rating
- 4.5/5
- Reviews
- 14
- Age
- 7mo ago

AQQA External Aquarium Filter 1200L/h Adjustable Canister Filter Aquarium External Filter for Tanks up to 250L - Includes 3-Stage Filtration & Complete Accessories
- Price
- £54.54
- Rating
- 4.3/5
- Reviews
- 41
- Age
- 11mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 60% of clicks. Leaders hold, but buyers still shop past them.
Brands
10 falling
Sellers
46
Est. top-5 brand share
87%
Top 20: 100%
Est. top-5 click share
60%
Top 20: 98%
Open market
9%
- allpondsolutions47%
- Fluval16%
- Fishnanny11%
- AQQA7%
- hygger6%
- Hidom4%
- Open — no brand owns it (4 brands, 9%)
Demand
External Filter Aquarium search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.6×
Search terms
Top External Filter Aquarium search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- external fish tank filter22K/yr
- external filter aquarium26K/yr
- canister filter aquarium17K/yr
- external aquarium filter17K/yr
- canister filter11K/yr
- aquarium external filter11K/yr
- external filter10K/yr
- aquarium filter external6K/yr
- aquarium canister filter5K/yr
- fish tank external filter6K/yr
Reviews and returns
What reviews say buyers love and hate about External Filter Aquarium
We read the reviews and the return reasons for every product selling here.
“Im very disappointed in this filter”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common External Filter Aquarium questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









