---
title: "Trend — co2 anlage aquarium - Flapen"
canonical_url: "https://flapen.com/research/de/garten/co2-anlage-aquarium/trend"
last_updated: "2026-08-06T18:26:23.113Z"
locale: en
meta:
  description: "Niche score 49/100 · €226K/yr market · 205K searches/yr · €71.58 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 49/100 · €226K/yr market · 205K searches/yr · €71.58 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Trend — co2 anlage aquarium - Flapen"
---

# **co2 anlage aquarium**

**Skip it**

Soft demand (-43.1% this quarter) — this niche doesn't clear our bar today.

Market size 43Growth 3Conversion 19Competition 60Returns 84Price range 33Avg price 85Brand share 48Review moat 79Quality gap 80

**Avg price**

**Great****€71.58**

avg listing price — sweet spot $15–$100

**Returns**

**Great****1.6%**

return rate — above 5% kills the launch gate

**Quality gap**

**Great****4.2★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Great****421.31**

avg incumbent reviews — the moat a new listing must climb

**Competition**

**Good****49%**

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

**Brand share**

**Okay****76%**

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

**Market size**

**Okay****€226K**

€226K/yr · 205K searches

**Price range**

**Okay****€5.20–€262.30**

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

**Conversion**

**Bad****1.5%**

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

**Growth**

**Bad****-43.1%**

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

**Signals**[** High Price**](https://flapen.com/research/niches?market=de&signal=high_price "Avg price > $50")

## Trend