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29 gallon aquarium
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Avg price
Good$167.53avg listing price — sweet spot $15–$100
Review moat
Good1,477.3avg incumbent reviews — the moat a new listing must climb
Returns
Okay4.0%return rate — above 6% kills the launch gate
Growth
Bad-1.2%90-day search growth — must beat 0% to launch
Competition
Bad80%top-5 click share — a locked-up shelf
Market size
Bad$50K$50K/yr · 66K searches
Price range
Bad$70.78–$368.31cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Bad0.4%search→purchase rate — share of searches ending in a sale
Brand share
Bad100%top-5 brand share — brand-locked demand