---
title: "Search terms — fish tank filter - Flapen"
canonical_url: "https://flapen.com/research/uk/pet-supplies/fish-tank-filter/search-terms"
last_updated: "2026-07-31T08:57:10.375Z"
locale: en
meta:
  description: "Niche score 54/100 · £601K/yr market · 976K searches/yr · £15.68 avg price. Soft demand (-14.2% this quarter) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 54/100 · £601K/yr market · 976K searches/yr · £15.68 avg price. Soft demand (-14.2% this quarter) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Search terms — fish tank filter - Flapen"
---

# **fish tank filter**

**Worth a look**

Shows beatable incumbent ratings (4.0★), but soft demand (-14.2% this quarter) keeps it on the watch list.

Market size 64Growth 18Conversion 49Competition 38Returns 63Price range 75Avg price 77Brand share 52Review moat 52Quality gap 94

**Quality gap**

**Great****4.0★**

avg incumbent rating — lower means beatable quality

**Avg price**

**Great****£15.68**

avg listing price — sweet spot $15–$100

**Price range**

**Great****£7.71–£37.55**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Market size**

**Good****£601K**

£601K/yr · 976K searches

**Returns**

**Good****2.5%**

return rate — above 5% kills the launch gate

**Brand share**

**Good****74%**

top-5 brand share — brands hold most of the demand

**Review moat**

**Good****1,440**

avg incumbent reviews — the moat a new listing must climb

**Conversion**

**Okay****3.9%**

search→purchase rate — share of searches ending in a sale

**Competition**

**Okay****62%**

top-5 click share — leaders hold, buyers still browse

**Growth**

**Bad****-14.2%**

90-day search growth — must beat 0% to launch