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Aquarium Thermometers

Fail

Prices span $2.79–$8.02, mostly outside the sweet spot, so Aquarium Thermometers is a Fail.

Flapen Score
43
43 / 100
Ranks 664 of 875 Pet Supplies niches · −7 vs the category median of 50
Market size
£130K/yr215K searches / yr
90-day growth
-16.8%search demand this quarter
Competition
78%top-5 click share · 11 brands · 24 sellers

Flapen Score

Aquarium Thermometers against its category

The dotted line is the Pet Supplies average. Past it, Aquarium Thermometers is stronger. Inside it, weaker.

43Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Aquarium Thermometers market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Aquarium Thermometers 215K times last year and spent an estimated £130K. The top 5 brands take 83% of clicks. Demand peaks in Jan–Feb. Flapen scores it 43 out of 100, a Fail.

01 · Demand

An estimated 13.3% of those searches ended in a purchase.

Shoppers searched for this 215K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 13.3% of those searches ended in a purchase. Searches in the last 90 days moved -16.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated £130K a year.

Searches, last 12 months
215K
Growth, 90 days vs prior 90
-16.8%
Conversion, latest week
13.3%
Market size, estimated
£130Ka year
Peak month
January1.5× the quietest month
Top search term
aquarium thermometer81K searches a year

02 · Price

A sale here is worth £4.54.

Listings sell for £4.54 on average, from £2.79 to £8.02. Amazon reports units sold in ranges. This niche sold 20K to 25K a year. The average listing sells 1,250 to 1,500 of them. At £4.54 that is £6K to £7K a year per listing.

Average price
£4.54under the $15 to $100 sweet spot
Price range
£2.79–£8.02
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
20K–25K
Units per listing a year
1,250–1,500
Revenue per listing a year
£6K–£7K
Returns
0.3%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is reviews.

62% of listings pay for placement with sponsored ads. 85% ship with Prime. On an average day, 3.4% of listings are out of stock. The average listing ranks #14 within Fish & Aquatic Pets. It carries 2,763 reviews at 4.26 stars, so a new listing needs social proof before a better product.

Sponsored listings
62%
Prime listings
85%
Out of stock, average day
3.4%
Average rank
#14in Fish & Aquatic Pets
Average rating
4.26 starsAmazon United Kingdom average 4.36 stars
Average reviews
2,763per listing
Listings tracked
13

04 · Newcomers

0 of last year's 5 launches cleared the first-year sales bar.

5 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 36 months on average, so the names here are settling in.

Launched, last 12 months
5
Successful launches
0Amazon's first-year sales bar
Average brand age
36 months

Products

Top Aquarium Thermometers 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 78% of clicks. A locked shelf that new listings rarely crack.

£0£13K£26K£39K£52K1101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

11 falling

Sellers

24

Est. top-5 brand share

83%

Top 20: 100%

Est. top-5 click share

78%

Top 20: 100%

Open market

12%

  • QZQ37%
  • EETU16%
  • HOSCARER12%
  • Thermometer World10%
  • Zacro8%
  • MDLSDE5%
  • Open — no brand owns it (5 brands, 12%)

Demand

Aquarium Thermometers search demand

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

5K3KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb · busiest ÷ quietest = 1.5×

Search terms

Top Aquarium Thermometers search terms shoppers use

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

  • aquarium thermometer81K/yr
  • fish tank thermometer72K/yr
  • fish tank thermometer tropical18K/yr
  • aquarium thermometer digital11K/yr
  • fish tank temperature gauge8K/yr
  • digital aquarium thermometer6K/yr
  • thermometer for fish tank5K/yr
  • digital fish tank thermometer5K/yr
  • aquarium temperature gauge5K/yr
  • fish tank thermometer stick on3K/yr

Reviews and returns

What reviews say buyers love and hate about Aquarium Thermometers

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

19%of positive reviews mention “Quality-Overall”
12%of negative reviews mention “Durability”
0.3%of orders come back
“Broke after a couple of months”
A buyer, on “Durability”12% 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.

16 topics

NegativePositive

FAQ

Common Aquarium Thermometers 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