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aquarium filter
Worth a lookShows a sweet-spot price point ($25.59 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Avg price
Incredible€25.59avg listing price — sweet spot $15–$100
Price range
Great€4.16–€91.50cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Brand share
Great52%top-5 brand share — no brand owns this niche
Competition
Great37%top-5 click share — an open shelf
Market size
Good€478K€478K/yr · 706K searches
Returns
Good2.9%return rate — above 6% kills the launch gate
Review moat
Okay1,960.24avg incumbent reviews — the moat a new listing must climb
Conversion
Okay2.6%search→purchase rate — share of searches ending in a sale
Growth
Bad-19.2%90-day search growth — must beat 0% to launch