39
black aquarium gravel
Skip itSoft demand (-15.4% this quarter) — this niche doesn't clear our bar today.
Price range
Good$5.54–$34.73cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Good$13.87avg listing price — sweet spot $15–$100
Returns
Good2.4%return rate — above 6% kills the launch gate
Conversion
Good5.1%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay2,563.06avg incumbent reviews — the moat a new listing must climb
Brand share
Okay85%top-5 brand share — brands hold most of the demand
Competition
Okay68%top-5 click share — leaders hold, buyers still browse
Market size
Bad$91K$91K/yr · 129K searches
Growth
Bad-15.4%90-day search growth — must beat 0% to launch