46
5 gallon fish tank filter
Skip itSoft demand (-10.5% this quarter) — this niche doesn't clear our bar today.
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Brand share
Good70%top-5 brand share — brands hold most of the demand
Competition
Good52%top-5 click share — leaders hold, buyers still browse
Conversion
Good4.3%search→purchase rate — share of searches ending in a sale
Returns
Okay3.2%return rate — above 6% kills the launch gate
Price range
Okay$5.91–$22.36cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay$10.88avg listing price — sweet spot $15–$100
Review moat
Okay2,711.66avg incumbent reviews — the moat a new listing must climb
Market size
Okay$102K$102K/yr · 217K searches
Growth
Bad-10.5%90-day search growth — must beat 0% to launch