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external filter aquarium
Skip itSoft demand (-20.3% this quarter) — this niche doesn't clear our bar today.
Price range
Incredible£24.32–£98.75cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Great£53.40avg listing price — sweet spot $15–$100
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Returns
Great1.4%return rate — above 5% kills the launch gate
Review moat
Good943avg incumbent reviews — the moat a new listing must climb
Competition
Okay60%top-5 click share — leaders hold, buyers still browse
Market size
Okay£153K£153K/yr · 151K searches
Brand share
Okay87%top-5 brand share — brands hold most of the demand
Conversion
Bad1.9%search→purchase rate — share of searches ending in a sale
Growth
Bad-20.3%90-day search growth — must beat 0% to launch
Signals High Price