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aquarium filter media
Worth a lookShows low returns (0.6%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.6%return rate — above 6% kills the launch gate
Avg price
Great$15.90avg listing price — sweet spot $15–$100
Competition
Great39%top-5 click share — an open shelf
Price range
Good$3.05–$48.56cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good5.7%search→purchase rate — share of searches ending in a sale
Brand share
Good71%top-5 brand share — brands hold most of the demand
Market size
Good$391K$391K/yr · 433K searches
Review moat
Okay1,944avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Okay+1.1%90-day search growth — must beat 0% to launch