37
30 gallon fish tank
Skip itPrices mostly outside the sweet spot ($18.64–$2431.46) — this niche doesn't clear our bar today.
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Competition
Good52%top-5 click share — leaders hold, buyers still browse
Review moat
Good1,397.76avg incumbent reviews — the moat a new listing must climb
Avg price
Okay$210.54avg listing price — sweet spot $15–$100
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Returns
Okay5.1%return rate — above 6% kills the launch gate
Market size
Okay$112K$112K/yr · 124K searches
Growth
Bad-4.6%90-day search growth — must beat 0% to launch
Conversion
Bad0.4%search→purchase rate — share of searches ending in a sale
Price range
Bad$18.64–$2431.46cheapest to priciest tracked listing — scored on the share inside $15–$100