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Aquarium Thermometers

prices mostly outside the sweet spot ($2.79–$8.02) — Aquarium Thermometers doesn't clear our bar today.

Flapen Score

43
Skip it
Market size 29Growth 17Conversion 96Competition 18Returns 98Price range 0Avg price 13Brand share 37Review moat 37Quality gap 78
This niche Category average

Is Aquarium Thermometers profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, Aquarium Thermometers is a £130K/yr Amazon United Kingdom market (215K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Jan–Feb. Verdict: Skip it — 43/100.

Aquarium Thermometers: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -16.8% over the last 90 days and 13.3% of searches end in a purchase.

£130K

revenue / yr

Units sold / yr25K
Search volume / yr-16.8%215K
Conversion rate13.3%
Avg price£4.54

Who owns the niche?

The top 5 brands hold 83% of demand, so 17% of the market is open.

17%

open market share

Brands · sellers11 · 24
Top-5 product click share78%
Open market17%
Avg brand age36 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.3★ — the gap to enter on.

0/100

page quality · 13 products

Sponsored placement62%
New entrants (1y)5· 0 succeeded
Avg rating4.3★
Avg reviews2,763

Top Aquarium Thermometers products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products capture 78% of clicks — a locked-up 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

Top-5 brand share

83%

Top 20: 100%

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%)

Aquarium Thermometers demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume215KCVR13.3%Products13Brands11Top 5 Brands83%OOS Rate3.4%Rating4.3★Reviews2,763Avg BSR#14
5K3KSpike '25Spike '26SepDecMarJunAugNovMarMay

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

Top Aquarium Thermometers search terms shoppers use

The exact queries shoppers type, with 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

What reviews say buyers love and hate about Aquarium Thermometers

What buyers mention most, as a share of all reviews.

What buyers love

88% of reviews
Quality-Overall19%

Very high quality very accurate

Advertised Vs Actual Product14%

Does the job perfectly

Ease Of Use13%

Easy to use

Value For Money12%

Very good value for money

Efficiency9%

Works perfectly

What buyers complain about

71% of reviews
Durability12%

Broke after a couple of months

Functionality-Overall11%

Dont work

Size-Overall10%

Not Fit For Purpose

Quality-Overall8%

Junk

Display-Overall6%

However the display isn't always lit up

Aquarium Thermometers return rate & reasons

Why buyers send it back, as a share of all return requests.

0.3%

Return rate

7%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Functionality-Overall
32%
2Adhesion/Stickiness
20%
3Defective Material/Parts
12%
4Heating
8%
5Compatibility-Overall
6%

Common Aquarium Thermometers questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Aquarium Thermometers 43/100 on Amazon United Kingdom — Skip it. The niche generates £130K/yr across 13 tracked products. 0 of 5 products launched in the last 360 days are still selling. Search demand moved -16.8% over the last 90 days.
Search demand for Aquarium Thermometers on Amazon United Kingdom peaks in Jan–Feb, where the busiest month runs 1.5× the quietest.