---
title: "Search terms — 10 gallon fish tank filter cartridges - Flapen"
canonical_url: "https://flapen.com/research/us/pet-supplies/10-gallon-fish-tank-filter-cartridges/search-terms"
last_updated: "2026-07-22T23:28:02.536Z"
locale: en
meta:
  description: "Niche score 40/100 · $104K/yr market · 53K searches/yr · $14.29 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 40/100 · $104K/yr market · 53K searches/yr · $14.29 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Search terms — 10 gallon fish tank filter cartridges - Flapen"
---

# **10 gallon fish tank filter cartridges**

**Skip it**

Brand-locked demand (top 5 brands take 94% of clicks) — this niche doesn't clear our bar today.

Market size 26Growth 29Conversion 96Competition 19Returns 77Price range 47Avg price 69Brand share 14Review moat 20Quality gap 35

**Conversion**

**Incredible****13.7%**

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

**Returns**

**Great****1.9%**

return rate — above 6% kills the launch gate

**Avg price**

**Good****$14.29**

avg listing price — sweet spot $15–$100

**Price range**

**Okay****$6.37–$22.54**

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

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Growth**

**Okay****+3.2%**

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

**Market size**

**Okay****$104K**

$104K/yr · 53K searches

**Review moat**

**Bad****12,594.42**

avg incumbent reviews — the moat a new listing must climb

**Competition**

**Bad****77%**

top-5 click share — a locked-up shelf

**Brand share**

**Bad****94%**

top-5 brand share — brand-locked demand