Fish Tank Filter
Fish Tank Filter shows beatable incumbent ratings (4.0★), but soft demand (-14.2% this quarter) keeps it on the watch list.
Flapen Score
Is Fish Tank Filter profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Fish Tank Filter is a £601K/yr Amazon United Kingdom market (976K searches/yr). The top 5 brands hold 74% of demand. Verdict: Worth a look — 54/100.
Fish Tank Filter: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved -14.2% over the last 90 days and 3.9% of searches end in a purchase.
£601K
revenue / yr
Who owns the niche?
The top 5 brands hold 74% of demand, so 26% of the market is open.
26%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.0★ — the gap to enter on.
0/100
page quality · 22 products
Top Fish Tank Filter 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
NICREW Fish Tank Filter Internal Aquarium Filter for Small Tank Coldwater or Tropical Aquariums Up to 20L Black
- Price
- £11.15
- Rating
- 4.3/5
- Reviews
- 2,242
- Age
- 4y ago
OsAtNb Quiet Fish Tank Filter 4-in-1 Internal Aquarium Filter for 20L-200L Submersible Water Pump Oxygen Aeration Wave Maker Water Change for Betta Turtle Pond Fish Garden(S)
- Price
- £16.53
- Rating
- 3.8/5
- Reviews
- 873
- Age
- 5y ago
Interpet Internal Aquarium Fish Tank Filter Bio CF1 Includes Coir Tech Bio Cartridges High Flow Silent Filtration Cleans Water for Coldwater & Tropical 36-68 Litres (Aquarium length up to 60cm)
- Price
- £12.81
- Rating
- 4.2/5
- Reviews
- 1,672
- Age
- 12y ago
Interpet Internal Aquarium Fish Tank PF1 Power Filter Cleans Water for Coldwater & Tropical Aquariums Up to 68 Litre black/blue
- Price
- £13.16
- Rating
- 4.2/5
- Reviews
- 2,747
- Age
- 18y ago
Craftsboys Fish Tank Filter Silent Internal Aquarium Filter Clean Water Air Pump Make Waves (4W-450L/H Black)
- Price
- £8.20
- Rating
- 3.9/5
- Reviews
- 879
- Age
- 4y ago
Trending
90-day click momentum
Aquapapa U-V Fish Tank Filter 8W 500L/H Aquarium Filter Pump with 6-Layer Filtration for 30110L Tanks Internal Multifunctional Fish Tank Pump with Sponge Filter for Crystal Clear Water
- Price
- £26.40
- Rating
- 4.2/5
- Reviews
- 23
- Age
- 3mo ago
Pawfly 3 W Small Fish Tank Filter 300 L Aquarium Filter Internal Submersible Aquarium Filter with Foam & Adjustable Water Pump Quiet Filter for 30-80 L Fish Tanks
- Price
- £9.78
- Rating
- 3.5/5
- Reviews
- 43
- Age
- 8mo ago
PYPABL Submersible Fish Tank Internal Filter Mini Aquarium Filter with Water Pump for up to 75L Fish and Shrimp Tank(3W for 3-40L Tank)
- Price
- £8.55
- Rating
- 4.4/5
- Reviews
- 24
- Age
- 8mo ago
BAITAI Internal UV Fish Tank Filter 400L/H 4W Aquarium Filter Pump Turns Green Water to Clear 5-in-1 Filter Pump for 15-80L Aquarium Flow Rate and Direction Adjustable
- Price
- £20.55
- Rating
- 3.9/5
- Reviews
- 309
- Age
- 3y ago
Interpet Internal Aquarium Fish Tank Filter Bio CF2 Includes Coir Tech Bio Cartridges High Flow Silent Filtration Cleans Water for Coldwater & Tropical 69-110 Litres (Aquarium length up to 80cm)
- Price
- £19.81
- Rating
- 4.3/5
- Reviews
- 1,020
- Age
- 12y ago
Newest
by launch dateAquapapa U-V Fish Tank Filter 8W 500L/H Aquarium Filter Pump with 6-Layer Filtration for 30110L Tanks Internal Multifunctional Fish Tank Pump with Sponge Filter for Crystal Clear Water
- Price
- £26.40
- Rating
- 4.2/5
- Reviews
- 23
- Age
- 3mo ago
PYPABL Submersible Fish Tank Internal Filter Mini Aquarium Filter with Water Pump for up to 75L Fish and Shrimp Tank(3W for 3-40L Tank)
- Price
- £8.55
- Rating
- 4.4/5
- Reviews
- 24
- Age
- 8mo ago
Pawfly 3 W Small Fish Tank Filter 300 L Aquarium Filter Internal Submersible Aquarium Filter with Foam & Adjustable Water Pump Quiet Filter for 30-80 L Fish Tanks
- Price
- £9.78
- Rating
- 3.5/5
- Reviews
- 43
- Age
- 8mo ago
AQQA Fish Tank Filter 550L/h Internal Aquarium Filter 6W Quiet Fish Tank Filter Pump for Tanks up to 130L
- Price
- £16.02
- Rating
- 3.8/5
- Reviews
- 75
- Age
- 1y ago
VILLNO 8W 400LPH Ultra Powerful Aquarium Filter for 30-90L Fish Tank 3-IN-1 Adjustable Fish Tank Filter with Biochemical Sponge Internal Submersible Fish Tank Filters for Turtle/Shrimp/Breeding
- Price
- £11.29
- Rating
- 4.0/5
- Reviews
- 101
- Age
- 1y ago
Competition: brands, sellers & click share
The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.
Brands
15 falling
Sellers
84
Top-5 brand share
74%
Top 20: 100%
Top-5 click share
62%
Top 20: 98%
Open market
22%
- NICREW27%
- Interpet18%
- OsAtNb13%
- Craftsboys8%
- Pawfly7%
- BAITAI5%
Fish Tank Filter demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.2×
Top Fish Tank Filter search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- fish tank filter429K/yr
- aquarium filter185K/yr
- fish tank pump50K/yr
- fish tank filter pump45K/yr
- fish filter31K/yr
- small fish tank filter31K/yr
- filter for fish tanks24K/yr
- fish tank pump and filter24K/yr
- fish tank filters20K/yr
- aquarium pumps & filters20K/yr
What reviews say buyers love and hate about Fish Tank Filter
What buyers mention most, as a share of all reviews.
What buyers love
84% of reviews“Decent filter”
“reasonable price”
“Very good quality”
“Excellent as described”
“Easy to clean”
What buyers complain about
72% of reviews“Broke within a week”
“Terrible filter”
“Not a good quality”
“Very small”
“it barely works”
Fish Tank Filter return rate & reasons
Why buyers send it back, as a share of all return requests.
2.5%
Return rate
39%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Fish Tank Filter 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.
