---
title: "Reviews — fish tank - Flapen"
canonical_url: "https://flapen.com/research/uk/pet-supplies/fish-tank/reviews"
last_updated: "2026-07-31T10:31:50.226Z"
locale: en
meta:
  description: "Niche score 56/100 · £487K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 56/100 · £487K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Reviews — fish tank - Flapen"
---

# **fish tank**

**Worth a look**

Shows beatable incumbent ratings (3.9★), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 59Growth 15Conversion 6Competition 75Returns 50Price range 45Avg price 94Brand share 73Review moat 79Quality gap 96

**Quality gap**

**Incredible****3.9★**

avg incumbent rating — lower means beatable quality

**Avg price**

**Great****£47.02**

avg listing price — sweet spot $15–$100

**Review moat**

**Great****421.93**

avg incumbent reviews — the moat a new listing must climb

**Competition**

**Good****40%**

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

**Brand share**

**Good****61%**

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

**Market size**

**Good****£487K**

£487K/yr · 2.4M searches

**Returns**

**Okay****3.0%**

return rate — above 5% kills the launch gate

**Price range**

**Okay****£12.25–£201.27**

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

**Growth**

**Bad****-20.0%**

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

**Conversion**

**Bad****0.4%**

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

**Signals**[** Quality Gap**](https://flapen.com/research/niches?market=uk&signal=quality_gap "Avg rating < 4.0")