External Filter Aquarium
soft demand (-20.3% this quarter) — External Filter Aquarium doesn't clear our bar today.
Flapen Score
Is External Filter Aquarium profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, External Filter Aquarium is a £153K/yr Amazon United Kingdom market (151K searches/yr). The top 5 brands hold 87% of demand. Verdict: Skip it — 49/100.
External Filter Aquarium: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -20.3% over the last 90 days and 1.9% of searches end in a purchase.
£153K
revenue / yr
Who owns the niche?
The top 5 brands hold 87% of demand, so 13% of the market is open.
13%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.1★ — the gap to enter on.
0/100
page quality · 22 products
Top External Filter Aquarium products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 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
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 date1400L/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: brands, sellers & click share
The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.
Brands
10 falling
Sellers
46
Top-5 brand share
87%
Top 20: 100%
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%)
External Filter Aquarium demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.6×
Top External Filter Aquarium search terms shoppers use
The exact queries shoppers type, with 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
What reviews say buyers love and hate about External Filter Aquarium
What buyers mention most, as a share of all reviews.
What buyers love
85% of reviews“Decent filter”
“It feels well made”
“worth the price”
“Adjustable flow is brilliant on it”
“Easy to clean”
What buyers complain about
65% of reviews“Im very disappointed in this filter”
“leaked”
“huge”
“Suddenly stopped working after only a couple months use”
“Absolutely rubbish”
External Filter Aquarium return rate & reasons
Why buyers send it back, as a share of all return requests.
1.4%
Return rate
28%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common External Filter Aquarium questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
