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Sponge Filter

Fail

Shoppers spend only $49K a year here, so Sponge Filter is a Fail.

Flapen Score
48
48 / 100
Ranks 496 of 875 Pet Supplies niches · −2 vs the category median of 50
Market size
£49K/yr142K searches / yr
90-day growth
-12.5%search demand this quarter
Competition
37%top-5 click share · 13 brands · 18 sellers

Flapen Score

Sponge Filter against its category

The dotted line is the Pet Supplies average. Past it, Sponge Filter is stronger. Inside it, weaker.

48Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Sponge Filter market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Sponge Filter 142K times last year and spent an estimated £49K. The top 5 brands take 82% of clicks. Flapen scores it 48 out of 100, a Fail.

01 · Demand

3.1% of searches ended in a purchase last week.

Shoppers searched for this 142K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. In the latest week, 3.1% of those searches ended in a purchase. Searches in the last 90 days moved -12.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated £49K a year.

Searches, last 12 months
142K
Growth, 90 days vs prior 90
-12.5%
Conversion, latest week
3.1%
Market size, estimated
£49Ka year
Top search term
sponge filter46K searches a year

02 · Price

A sale here is worth £11.22.

Listings sell for £11.22 on average, from £3.39 to £24.88. Amazon reports units sold in ranges. This niche sold 4K to 5K a year. The average listing sells 100 to 250 of them. At £11.22 that is £1K to £3K a year per listing.

Average price
£11.22under the $15 to $100 sweet spot
Price range
£3.39–£24.88
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
4K–5K
Units per listing a year
100–250
Revenue per listing a year
£1K–£3K
Returns
1.8%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is low.

90% of listings pay for placement with sponsored ads. 95% ship with Prime. On an average day, 2.4% of listings are out of stock. The average listing ranks #72 within Fish & Aquatic Pets. It carries 403 reviews at 4.23 stars, so a new listing needs social proof before a better product.

Sponsored listings
90%
Prime listings
95%
Out of stock, average day
2.4%
Average rank
#72in Fish & Aquatic Pets
Average rating
4.23 starsAmazon United Kingdom average 4.36 stars
Average reviews
403per listing
Listings tracked
40

04 · Newcomers

Amazon counts 0 of last year's 2 launches as successful.

2 products launched here in the last 12 months. Amazon counts 0 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 41 months on average, so the names here are settling in.

Launched, last 12 months
2
Successful launches
0Amazon's first-year sales bar
Average brand age
41 months

Products

Top Sponge Filter products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take only 37% of clicks. An open shelf where new products get seen.

£0£1K£3K£4K£6K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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%)

Demand

Sponge Filter search demand

Weekly searches over the year. Pick a range.

3K2KMar '26Apr '26May '26May '26Jun '26Jul '26

Search terms

Top Sponge Filter search terms shoppers use

The exact words 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

Reviews and returns

What reviews say buyers love and hate about Sponge Filter

What buyers praise, what they complain about and why they send it back, from the reviews.

Complain

Durability17%−0.31

Breaks after a month

Breaks after a few weeks

Stopped working after 4 days of using

Filtration16%+1.77

foats had to squeeze it between the filter

I had trouble with my regular filter with my new shrimp getting sucked into the filter

I have received the filter with part missing

Size-Overall15%−0.09

Absolutely tiny

Very tiny pump

bigger then expected

Quality-Overall6%+0.16

Not the best

Unreliable and poor quality

Rubbish

Functionality-Overall6%−0.10

Dont work

This item cannot work alone

still cant see why it would be doing this

Love

Filtration35%+1.77

Filter works well

Filters work great

Excellent filter

Value For Money11%+0.93

Good price

fair price

Excellent value

Quality-Overall10%+0.16

Quality item with good easy to make pieces

Good quality

Its a reliable

Ease Of Cleaning8%+0.60

It cleans my tank much better than the one I had before

Easy to clean

it cleans perfectly

Advertised Vs Actual Product5%

Did the job

does the job

Exactly as described

Return

1.8% Return rate 57% Fixable by listing

Size-Overall48%▆▇█▆▇█

Absolutely tiny

Very tiny pump

bigger then expected

Filtration10%█▅█▆▂▆

foats had to squeeze it between the filter

I had trouble with my regular filter with my new shrimp getting sucked into the filter

I have received the filter with part missing

Functionality-Overall10%▆▅▄▆█▃

Dont work

This item cannot work alone

still cant see why it would be doing this

Defective Material/Parts6%█▄▃█▆▄
Compatibility-Overall5%▄▄█▅▃▄

FAQ

Common Sponge Filter questions

Answered from the same tracked data.