---
title: "Aquarium — €626K/yr Amazon DE Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/de/haustier/aquarium"
last_updated: "2026-08-10T02:24:03.562Z"
locale: en
meta:
description: "Niche score 53/100 · €626K/yr market · 2.2M searches/yr · €69.67 avg price. Weak search conversion (0.4%) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · €626K/yr market · 2.2M searches/yr · €69.67 avg price. Weak search conversion (0.4%) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Aquarium — €626K/yr Amazon DE Niche (2026) - Flapen"
---
# **aquarium**
**Worth a look**
Shows low returns (0.5%), but weak search conversion (0.4%) keeps it on the watch list.
Market size 65Growth 9Conversion 5Competition 69Returns 98Price range 33Avg price 86Brand share 47Review moat 46Quality gap 83
**Returns**
**Incredible****0.5%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****€69.67**
avg listing price — sweet spot $15–$100
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Competition**
**Good****43%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Good****€626K**
€626K/yr · 2.2M searches
**Brand share**
**Okay****77%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Okay****1,907.18**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Okay****€5.83–€263.47**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Bad****-33.0%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****0.4%**
search→purchase rate — share of searches ending in a sale
**Signals**[** High Price**](https://flapen.com/research/niches?market=de&signal=high_price "Avg price > $50")
According to Flapen's Amazon Germany niche tracking, aquarium is a €626K/yr Amazon Germany market (2.2M searches/yr). The top 5 brands hold 77% of demand. Demand peaks in Jan. Verdict: Worth a look — 53/100.
Data updated Jul 13, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **aquarium market data**
- **Units sold / yr**
- **6K–8K**
- avg 0–100/product
- **Revenue / yr**
- **€418K–€557K**
- units × avg price
- **Conversion rate**
- **0.4%**
- **Avg BSR**
- **#56**
- **Page quality**
- **0%**
- **Prime**
- **76%**
- **Sponsored**
- **89%**
- **Out of stock**
- **25.4%**
- **Avg brand age**
- **38 months**
- **Avg seller age**
- **177 days**
## **Competition & brand share**
The top 5 products take 43% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**16 **▼falling
**Sellers**
**30**
**Top-5 brand share**
**77%**
Top 20: 100%
**Top-5 click share**
**43%**
Top 20: 77%
**Open market**
**19%**
- Tetra23% - Craftsboys22% - Vehipa17% - VIALIA9% - Nobleza5% - Fluval4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -33.0% search growth over the last 90 days.
60K40KPrime Day '24Spike '24Black Friday '24Prime Day '25Spike '25Black Friday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Jan · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/de/haustier/aquarium/trend)
## **Top aquarium search terms**
- **aquarium**1.4M/yr-30.6%0.2% conv. - **aquarium komplettset**114K/yr-34.3%0.4% conv. - **nano aquarium**122K/yr-51.2%0.3% conv. - **mini aquarium**95K/yr-28.0%0.6% conv. - **aquarien**63K/yr-40.1%0.1% conv. - **mini aquarium komplettset**46K/yr-41.5%0.4% conv. - **aquarium klein**45K/yr-34.4%0.5% conv. - **aquarium set**47K/yr-35.9%0.1% conv. - **nano aquarium komplettset**44K/yr-35.9%0.3% conv. - **kleines aquarium**32K/yr-27.2%0.4% conv. [**All search terms **](https://flapen.com/research/de/haustier/aquarium/search-terms)
## **Top aquarium products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%4%€25K8%€50K12%€75K16%€100K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Tetra Starter Line 54 L Aquarium Komplett-Set - inkl. Tag- & Nachtlicht LED-Beleuchtung Innenfilter Heizer Fischfutter und Wasseraufbereiter**Tetra**€79.64**4.0★911 rev](https://www.amazon.de/dp/B09RPD8HGL) [2**9L Weißglas Fischtank Aquarium mit LED-Leuchten & Filtersystem Filtermedien tropischeAquarien (9L)**Craftsboys**€37.14**3.6★238 rev](https://www.amazon.de/dp/B0D59KYMG2) [3**Craftsboys 5.5L Aquarium-Starter-Kits Nano-Glas-Aquarium mit Filter LED-Licht für Aquascape DIY kleines Betta-Fischbecken**Craftsboys**€29.73**4.3★428 rev](https://www.amazon.de/dp/B0CJ4N48RY) [4**3 7L Kleines Betta Aquarium Komplettset Mini Aquarium aus Acryl mit Filterpumpe LED-Beleuchtung ideal für kleine Fische Garnelen und Pflanzen (Schwarz)**Vehipa**€34.57**4.0★115 rev](https://www.amazon.de/dp/B0GJZ6PJVC) [5**Vehipa Nano Aquarium 9L Aquarium Klein mit intelligentem Luftbefeuchter Temperaturanzeige UHD-Glas 7-Farben-Beleuchtung 3 in 1 Leise Pumpe mit Filterung & Sauerstoffzufuhr & Zirkulation**Vehipa**€49.70**3.8★584 rev](https://www.amazon.de/dp/B0F32CDJMK)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**3 7L Kleines Betta Aquarium Komplettset Mini Aquarium aus Acryl mit Filterpumpe LED-Beleuchtung ideal für kleine Fische Garnelen und Pflanzen (Schwarz)**Vehipa**€34.57**115 rev5mo ago](https://www.amazon.de/dp/B0GJZ6PJVC) [**16L Nano Aquarium Komplettset Intelligentes Aquarium Klein mit automatischer Futterstation geräuscharmer 4-in-1-Pumpe Einstellbarer 8-Farben-Beleuchtung Temperaturanzeige und Luftbefeuchter**Vehipa**€92.77**41 rev5mo ago](https://www.amazon.de/dp/B0GK15VG9R) [**Vehipa 3 7L Kleines Betta Aquarium Komplettset Nano Aquarium aus Acryl mit Filter LED-Beleuchtung Pumpe ideal für kleine Fische Garnelen und Pflanzen (Weiß)**Vehipa**€34.71**115 rev5mo ago](https://www.amazon.de/dp/B0GJZBQ361) [**fishkeeper 5-in-1 Mini Aquarium Starterset mit LED Timed Feeding & Selbstreinigende Pumpe & Filter 8.6L Nano Aquarium Komplettset Smart Klein Aquarien Set komplett mit Aromatherapie Luftbefeuchter**fishkeeper**€67.63**0 rev6mo ago](https://www.amazon.de/dp/B0G7JN7NHF) [**Aquarium Desktop-Set 10L Kleines Fischbecken 30x15x22 Ultra-Klares Glas mit Selbstreinigungsfilter Helles Licht Heizung Steine Kies Reinigungswerkzeug Randloses Fischglas für Anfänger Starterkit**Wonderfactory**€55.88**98 rev6mo ago](https://www.amazon.de/dp/B0G7M6B7LV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**16L Nano Aquarium Komplettset Intelligentes Aquarium Klein mit automatischer Futterstation geräuscharmer 4-in-1-Pumpe Einstellbarer 8-Farben-Beleuchtung Temperaturanzeige und Luftbefeuchter**Vehipa**€92.77**4.5★**▲ 305%**](https://www.amazon.de/dp/B0GK15VG9R) [**fishkeeper 5-in-1 Mini Aquarium Starterset mit LED Timed Feeding & Selbstreinigende Pumpe & Filter 8.6L Nano Aquarium Komplettset Smart Klein Aquarien Set komplett mit Aromatherapie Luftbefeuchter**fishkeeper**€67.63**0.0★**▲ 304%**](https://www.amazon.de/dp/B0G7JN7NHF) [**Dennerle Nano Cube 20 L - Das Original**Dennerle**€41.74**4.7★**▲ 262%**](https://www.amazon.de/dp/B07799R61R) [**Fluval Flex 2.0 Aquarium Set 34 L Nano Aquarium Komplettset mit geschwungener Frontscheibe LED Beleuchtung mit Fernbedienung integriertes 3-Stufen-Filtersystem Fütterungsklappe und Düsenstrahlrohr**Fluval**€105.25**4.7★**▲ 209%**](https://www.amazon.de/dp/B0FS27DTLW) [**Aquarium Desktop-Set 10L Kleines Fischbecken 30x15x22 Ultra-Klares Glas mit Selbstreinigungsfilter Helles Licht Heizung Steine Kies Reinigungswerkzeug Randloses Fischglas für Anfänger Starterkit**Wonderfactory**€55.88**4.2★**▲ 203%**](https://www.amazon.de/dp/B0G7M6B7LV)
**~~View all trending →~~**
## **What buyers say about aquarium**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Qualität insgesamt**27%
*“Super Aquarium, top Verarbeitung”*
**Preis-Leistungs-Verhältnis**15%
*“Preis-Leistung Super”*
**beworben Vs Tatsächliches Produkt**9%
*“Erfüllt sein Zweck”*
**Gesamtgröße**7%
*“Passt”*
**Design insgesamt**5%
*“Schönes Design, sieht sehr schick aus”*
**Benutzerfreundlichkeit**5%
*“Schnell und unkompliziert”*
**Filterung**3%
*“Filter”*
**Geschmack insgesamt**3%
*“Shrimpies yummyumm”*
**Haltbarkeit**3%
*“Hält lange”*
**Helligkeit/Glanz/Glühen**3%
*“LED - Beleuchtung sehr schön”*
### **What buyers complain about **
**Filterung**14%
*“War leider am 2. TAG schon die Filterpumpe defekt”*
**Gesamtgröße**11%
*“Kleine Aquarium”*
**Haltbarkeit**10%
*“die Pumpe war nach 5 Minuten laufen kaputt”*
**Qualität insgesamt**7%
*“Minderwertige Qualität und fest eingebautes Pumpengehäuse”*
**Wasserfluss**6%
*“Wasserwechsel total umständlich”*
**beworben Vs Tatsächliches Produkt**6%
*“Abbildung entspricht nicht dem gelieferten Produkt”*
**Heizung**5%
*“Heizstab funktioniert nicht”*
**Montage/Installation**3%
*“Montage nach Anleitung der Pumpe verbesserungswürdig”*
**Preis-Leistungs-Verhältnis**3%
*“Evtl etwas teuer”*
**Auslaufsicher**2%
*“Läuft aus”*
### **Top return reasons **
**Gesamtgröße**46%
**Filterung**9%
**Auslaufsicher**6%
**Defekt Material/Teile**6%
**Funktionalität insgesamt**4%
**Qualität insgesamt**4%
**Wasserbeständigkeit**3%
**beworben Vs Tatsächliches Produkt**3%
**Kompatibilität – insgesamt**2%
**Haftung/Klebrigkeit**2%
## **Common questions**
- **Is aquarium profitable to sell on Amazon Germany?**
- The niche generates €626K/yr across 45 tracked products. 1 of 15 products launched in the last 360 days are still selling. 90-day search growth is -33.0%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the aquarium niche?**
- 16 brands and 30 sellers compete. The top 5 products take 43% of clicks and top 5 brands hold 77% of demand.
- **What do buyers complain about in aquarium?**
- Top complaints mined from reviews: Filterung, Gesamtgröße, Haltbarkeit. The return rate is 0.5%.
- **When does demand for aquarium peak?**
- Demand peaks in Jan; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the aquarium niche?**
- Listings span €5.83–€263.47; the average listing price is €69.67 (sweet spot $15–$100). The average incumbent carries 1,907 reviews — the moat a new listing must climb.
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