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Fish Tank Gravel

Fail

Prices span $2.85–$16.61, mostly outside the sweet spot, so Fish Tank Gravel is a Fail.

Flapen Score
44
44 / 100
Ranks 630 of 875 Pet Supplies niches · −6 vs the category median of 50
Market size
£121K/yr452K searches / yr
90-day growth
-17.8%search demand this quarter
Competition
45%top-5 click share · 15 brands · 34 sellers

Flapen Score

Fish Tank Gravel against its category

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

44Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Fish Tank Gravel market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Fish Tank Gravel 452K times last year and spent an estimated £121K. The top 5 brands take 89% of clicks. Flapen scores it 44 out of 100, a Fail.

01 · Demand

An estimated 4.4% of those searches ended in a purchase.

Shoppers searched for this 452K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 4.4% of those searches ended in a purchase. Searches in the last 90 days moved -17.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated £121K a year.

Searches, last 12 months
452K
Growth, 90 days vs prior 90
-17.8%
Conversion, latest week
4.4%
Market size, estimated
£121Ka year
Peak month
February1.3× the quietest month
Top search term
fish tank gravel152K searches a year

02 · Price

A sale here is worth £6.09.

Listings sell for £6.09 on average, from £2.85 to £16.61. Amazon reports units sold in ranges. This niche sold 25K to 30K a year. The average listing sells 500 to 750 of them. At £6.09 that is £3K to £5K a year per listing.

Average price
£6.09under the $15 to $100 sweet spot
Price range
£2.85–£16.61
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
25K–30K
Units per listing a year
500–750
Revenue per listing a year
£3K–£5K
Returns
0.4%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is reviews.

37% of listings pay for placement with sponsored ads. 97% ship with Prime. On an average day, 8.3% of listings are out of stock. The average listing ranks #18 within Fish & Aquatic Pets. It carries 1,543 reviews at 4.39 stars, so a new listing needs social proof before a better product.

Sponsored listings
37%
Prime listings
97%
Out of stock, average day
8.3%
Average rank
#18in Fish & Aquatic Pets
Average rating
4.39 starsAmazon United Kingdom average 4.36 stars
Average reviews
1,543per listing
Listings tracked
35

04 · Newcomers

0 of last year's 4 launches cleared the first-year sales bar.

4 products launched here in the last 12 months. 0 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
4
Successful launches
0Amazon's first-year sales bar
Average brand age
35 months

Products

Top Fish Tank Gravel 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 45% of clicks. Leaders hold, but buyers still shop past them.

£0£5K£10K£14K£19K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

15 falling

Sellers

34

Est. top-5 brand share

89%

Top 20: 100%

Est. top-5 click share

45%

Top 20: 86%

Open market

9%

  • Marina39%
  • Pettex25%
  • Amtra16%
  • Growcery7%
  • EZEELAI3%
  • FANTIAN2%
  • Open — no brand owns it (9 brands, 9%)

Demand

Fish Tank Gravel search demand

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

10K6KSpike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Search terms

Top Fish Tank Gravel search terms shoppers use

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

  • fish tank gravel152K/yr
  • aquarium gravel110K/yr
  • fish tank stones45K/yr
  • aquarium stones26K/yr
  • gravel for fish tanks28K/yr
  • stones for fish tanks11K/yr
  • fish gravel12K/yr
  • fish tank pebbles9K/yr
  • aquarium pebbles9K/yr
  • fish tank stones and gravel8K/yr

Reviews and returns

What reviews say buyers love and hate about Fish Tank Gravel

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

22%of positive reviews mention “Color”
20%of negative reviews mention “Size-Overall”
0.4%of orders come back
“Very small”
A buyer, on “Size-Overall”20% 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 Gravel 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