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aquarium thermometers

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Prices mostly outside the sweet spot ($2.79–$8.02) — this niche doesn't clear our bar today.

Market size 29Growth 17Conversion 96Competition 18Returns 98Price range 0Avg price 13Brand share 37Review moat 37Quality gap 78

Returns

Incredible0.3%

return rate — above 5% kills the launch gate

Conversion

Incredible13.3%

search→purchase rate — share of searches ending in a sale

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Brand share

Okay83%

top-5 brand share — brands hold most of the demand

Review moat

Okay2,763.15

avg incumbent reviews — the moat a new listing must climb

Market size

Okay£130K

£130K/yr · 215K searches

Competition

Bad78%

top-5 click share — a locked-up shelf

Growth

Bad-16.8%

90-day search growth — must beat 0% to launch

Avg price

Bad£4.54

avg listing price — sweet spot $15–$100

Price range

Bad£2.79–£8.02

cheapest to priciest tracked listing — scored on the share inside $15–$100