Sponge Filter
a small market ($49K/yr) — Sponge Filter doesn't clear our bar today.
Flapen Score
Is Sponge Filter profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Sponge Filter is a £49K/yr Amazon United Kingdom market (142K searches/yr). The top 5 brands hold 82% of demand. Verdict: Skip it — 48/100.
Sponge Filter: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -12.5% over the last 90 days and 3.1% of searches end in a purchase.
£49K
revenue / yr
Who owns the niche?
The top 5 brands hold 82% of demand, so 18% of the market is open.
18%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.2★ — the gap to enter on.
0/100
page quality · 40 products
Top Sponge 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
Pawfly Aquarium Nano Bio Sponge Filter Quiet Betta Fry Shrimp and Small Fish Foam Filter with Tubing Suction Cup Check Valve Connector and Control Valve Accessories for Tiny Fish Tank up to 40 Litre
- Price
- £6.69
- Rating
- 4.4/5
- Reviews
- 791
- Age
- 4y ago
Powkoo Sponge Filters for Aquarium Fish Tank Air Filter Aquarium Sponge Filter for Shrimp Betta Breeding Tank Large Up to 300L (L)
- Price
- £8.26
- Rating
- 4.6/5
- Reviews
- 871
- Age
- 9y ago
Powkoo Corner Sponge Filters for Aquarium Shrimp Nano Breeding Fish Tank Up to 200 Litre Tank (90063-L)
- Price
- £7.20
- Rating
- 4.4/5
- Reviews
- 151
- Age
- 8y ago
Pawfly Aquarium Bio Sponge Filter Quiet Betta Fry Shrimp and Small Fish Foam Filter for Fish Tanks up to 80 Litre3 Pack
- Price
- £9.11
- Rating
- 4.6/5
- Reviews
- 446
- Age
- 2y ago
VILLNO Air Powered Aquarium Sponge Filter with Biochemical Sponge and Ceramic Balls Quiet Submersible Fish Tank Filter for 30-120L Fresh Water and Saltwater
- Price
- £9.69
- Rating
- 4.2/5
- Reviews
- 54
- Age
- 1y ago
Trending
90-day click momentumVILLNO Air Powered Aquarium Sponge Filter with Biochemical Sponge and Ceramic Balls Quiet Submersible Fish Tank Filter for 30-120L Fresh Water and Saltwater
- Price
- £9.69
- Rating
- 4.2/5
- Reviews
- 54
- Age
- 1y ago
VILLNO Air Powered Aquarium Sponge Filter with Biochemical Sponge and Ceramic Balls Quiet Submersible Fish Tank Filter for 50-200L Fresh Water and Saltwater
- Price
- £11.83
- Rating
- 4.2/5
- Reviews
- 54
- Age
- 1y ago
Anxihanee Sponge filter for Aquarium Fish Tank Internal Filter for Shrimp Betta Breeding Nano Tank up to 300 Litre (60PPI)
- Price
- £8.27
- Rating
- 4.8/5
- Reviews
- 20
- Age
- 1y ago
Pawfly Aquarium Air Pump 2.5 L/min Quiet Oxygen Aerator Pump with Air Stone sponge filter Airline Tubing and Check Valve Accessories for 10-40 L Buckets and Fish Tanks
- Price
- £11.63
- Rating
- 4.0/5
- Reviews
- 781
- Age
- 4y ago
Pawfly Large Aquarium Bio Sponge Filter Quiet Betta Fry Shrimp and Small Fish Foam Filter for Fish Tank up to 200 Litre
- Price
- £7.57
- Rating
- 4.5/5
- Reviews
- 1,438
- Age
- 4y ago
Newest
by launch dateAnxihanee Sponge filter for Aquarium Fish Tank Internal Filter for Shrimp Betta Breeding Nano Tank up to 300 Litre (60PPI)
- Price
- £8.27
- Rating
- 4.8/5
- Reviews
- 20
- Age
- 1y ago
BEGONDIS Aquarium Sponge Filter Bio-Filtration System for Fish Tank Betta Tank & Breeding Aquariums Gentle Flow for Fry Shrimp & Sensitive Species (20-40L)
- Price
- £6.04
- Rating
- 4.0/5
- Reviews
- 61
- Age
- 1y ago
BEGONDIS Aquarium Sponge Filter Bio-Filtration System for Fish Tank Betta Tank & Breeding Aquariums Gentle Flow for Fry Shrimp & Sensitive Species (40-80L)
- Price
- £6.00
- Rating
- 4.0/5
- Reviews
- 61
- Age
- 1y ago
VILLNO Air Powered Aquarium Sponge Filter with Biochemical Sponge and Ceramic Balls Quiet Submersible Fish Tank Filter for 30-120L Fresh Water and Saltwater
- Price
- £9.69
- Rating
- 4.2/5
- Reviews
- 54
- Age
- 1y ago
VILLNO Air Powered Aquarium Sponge Filter with Biochemical Sponge and Ceramic Balls Quiet Submersible Fish Tank Filter for 50-200L Fresh Water and Saltwater
- Price
- £11.83
- Rating
- 4.2/5
- Reviews
- 54
- Age
- 1y ago
Competition: brands, sellers & click share
Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.
Brands
13 falling
Sellers
18
Top-5 brand share
82%
Top 20: 100%
Top-5 click share
37%
Top 20: 77%
Open market
12%
- Pawfly34%
- Powkoo21%
- AQQA11%
- hygger8%
- VILLNO8%
- BEGONDIS6%
- Open — no brand owns it (7 brands, 12%)
Sponge Filter demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Top Sponge Filter search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- sponge filter46K/yr
- sponge filters for aquarium46K/yr
- aquarium sponge filter18K/yr
- sponge filter and air pump7K/yr
- fish tank sponge filter8K/yr
- sponge filters5K/yr
- small sponge filter5K/yr
- sponge filter for fish tank4K/yr
- sponge fish tank filter4K/yr
What reviews say buyers love and hate about Sponge Filter
What buyers mention most, as a share of all reviews.
What buyers love
84% of reviews“Filter works well”
“Good price”
“Quality item with good easy to make pieces”
“It cleans my tank much better than the one I had before”
“Did the job”
What buyers complain about
74% of reviews“Breaks after a month”
“foats had to squeeze it between the filter”
“Absolutely tiny”
“Not the best”
“Dont work”
Sponge Filter return rate & reasons
Why buyers send it back, as a share of all return requests.
1.8%
Return rate
57%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Sponge 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.
