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Fish Tank Cleaner

Maybe

The products selling today average only 3.9★. But demand is soft, at -19.3% this quarter, so Fish Tank Cleaner is a Maybe.

Flapen Score
61
61 / 100
Top 10% of 875 Pet Supplies niches · +11 vs the category median of 50
Market size
£450K/yr521K searches / yr
90-day growth
-19.3%search demand this quarter
Competition
51%top-5 click share · 23 brands · 46 sellers

Flapen Score

Fish Tank Cleaner against its category

The dotted line is the Pet Supplies average. Past it, Fish Tank Cleaner is stronger. Inside it, weaker.

61Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Fish Tank Cleaner market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Fish Tank Cleaner 521K times last year and spent an estimated £450K. The top 5 brands take 57% of clicks. Flapen scores it 61 out of 100, a Maybe.

01 · Demand

An estimated 6.2% of those searches ended in a purchase.

Shoppers searched for this 521K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 6.2% of those searches ended in a purchase. Searches in the last 90 days moved -19.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated £450K a year.

Searches, last 12 months
521K
Growth, 90 days vs prior 90
-19.3%
Conversion, latest week
6.2%
Market size, estimated
£450Ka year
Peak month
February1.3× the quietest month
Top search term
fish tank cleaner154K searches a year

02 · Price

A sale here is worth £13.83.

Listings sell for £13.83 on average, from £3.40 to £33.09. Amazon reports units sold in ranges. This niche sold 30K to 40K a year. The average listing sells 750 to 1,000 of them. At £13.83 that is £10K to £14K a year per listing.

Average price
£13.83under the $15 to $100 sweet spot
Price range
£3.40–£33.09
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
30K–40K
Units per listing a year
750–1,000
Revenue per listing a year
£10K–£14K
Returns
1.3%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is reviews.

87% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 3.1% of listings are out of stock. The average listing ranks #18 within Fish & Aquatic Pets. It carries 2,199 reviews at 3.91 stars, so a new listing needs social proof before a better product.

Sponsored listings
87%
Prime listings
100%
Out of stock, average day
3.1%
Average rank
#18in Fish & Aquatic Pets
Average rating
3.91 starsAmazon United Kingdom average 4.36 stars
Average reviews
2,199per listing
Listings tracked
31

04 · Newcomers

3 of last year's 8 launches cleared the first-year sales bar.

8 products launched here in the last 12 months. 3 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 35 months on average, so a newcomer is not facing entrenched names.

Launched, last 12 months
8
Successful launches
3Amazon's first-year sales bar
Average brand age
35 months

Products

Top Fish Tank Cleaner 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.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 51% of clicks. Leaders hold, but buyers still shop past them.

£0£45K£90K£135K£180K101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

23 falling

Sellers

46

Est. top-5 brand share

57%

Top 20: 96%

Est. top-5 click share

51%

Top 20: 87%

Open market

38%

  • QZQ23%
  • Luigi's11%
  • NICREW9%
  • AQQA8%
  • OsAtNb6%
  • AKOFIC5%

Demand

Fish Tank Cleaner search demand

Weekly searches over the year, seasonality beneath. Pick a range.

12K8KSpike '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Search terms

Top Fish Tank Cleaner search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • fish tank cleaner154K/yr
  • gravel cleaner fish tank44K/yr
  • fish tank cleaning kit38K/yr
  • aquarium gravel cleaner33K/yr
  • fish tank gravel cleaner28K/yr
  • aquarium cleaner25K/yr
  • fish tank syphon22K/yr
  • gravel vacuum for aquarium16K/yr
  • aquarium cleaning kit17K/yr
  • fish tank gravel cleaner vacuum16K/yr

Reviews and returns

What reviews say buyers love and hate about Fish Tank Cleaner

We read the reviews and the return reasons for every product selling here.

23%of positive reviews mention “Ease Of Cleaning”
15%of negative reviews mention “Durability”
1.3%of orders come back
“Broke on first use”
A buyer, on “Durability”15% of negative reviews mention the same topic

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.

15 topics

NegativePositive

FAQ

Common Fish Tank Cleaner 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