53
fish tank syphon
Worth a lookShows beatable incumbent ratings (3.9★), but a small market ($64K/yr) keeps it on the watch list.
Quality gap
Incredible3.9★avg incumbent rating — lower means beatable quality
Returns
Great1.4%return rate — above 5% kills the launch gate
Brand share
Great56%top-5 brand share — no brand owns this niche
Conversion
Great7.3%search→purchase rate — share of searches ending in a sale
Price range
Good£4.75–£29.49cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good54%top-5 click share — leaders hold, buyers still browse
Review moat
Okay2,224.54avg incumbent reviews — the moat a new listing must climb
Avg price
Okay£9.97avg listing price — sweet spot $15–$100
Market size
Bad£64K£64K/yr · 88K searches
Growth
Bad-17.1%90-day search growth — must beat 0% to launch