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aquarium sand
Skip itPrices mostly outside the sweet spot ($1.70–$15.46) — this niche doesn't clear our bar today.
Returns
Incredible0.5%return rate — above 5% kills the launch gate
Conversion
Good4.0%search→purchase rate — share of searches ending in a sale
Competition
Okay56%top-5 click share — leaders hold, buyers still browse
Review moat
Okay2,027.55avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Bad90%top-5 brand share — brand-locked demand
Avg price
Bad£6.65avg listing price — sweet spot $15–$100
Market size
Bad£60K£60K/yr · 226K searches
Growth
Bad-29.3%90-day search growth — must beat 0% to launch
Price range
Bad£1.70–£15.46cheapest to priciest tracked listing — scored on the share inside $15–$100