aquarium
Worth a lookShows low returns (0.5%), but weak search conversion (0.4%) keeps it on the watch list.
Returns
Incredible0.5%return rate — above 5% kills the launch gate
Avg price
Great€69.67avg listing price — sweet spot $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Competition
Good43%top-5 click share — leaders hold, buyers still browse
Market size
Good€626K€626K/yr · 2.2M searches
Brand share
Okay77%top-5 brand share — brands hold most of the demand
Review moat
Okay1,907.18avg incumbent reviews — the moat a new listing must climb
Price range
Okay€5.83–€263.47cheapest 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
Bad0.4%search→purchase rate — share of searches ending in a sale
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
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.Peak months: Jan · busiest ÷ quietest = 1.8×
Top aquarium search terms
- aquarium1.4M/yr
- aquarium komplettset114K/yr
- nano aquarium122K/yr
- mini aquarium95K/yr
- aquarien63K/yr
- mini aquarium komplettset46K/yr
- aquarium klein45K/yr
- aquarium set47K/yr
- nano aquarium komplettset44K/yr
- kleines aquarium32K/yr
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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Tetra Starter Line 54 L Aquarium Komplett-Set - inkl. Tag- & Nachtlicht LED-Beleuchtung Innenfilter Heizer Fischfutter und Wasseraufbereiter
Tetra€79.644.0★911 rev
9L Weißglas Fischtank Aquarium mit LED-Leuchten & Filtersystem Filtermedien tropischeAquarien (9L)
Craftsboys€37.143.6★238 rev
Craftsboys 5.5L Aquarium-Starter-Kits Nano-Glas-Aquarium mit Filter LED-Licht für Aquascape DIY kleines Betta-Fischbecken
Craftsboys€29.734.3★428 rev
3 7L Kleines Betta Aquarium Komplettset Mini Aquarium aus Acryl mit Filterpumpe LED-Beleuchtung ideal für kleine Fische Garnelen und Pflanzen (Schwarz)
Vehipa€34.574.0★115 rev
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€49.703.8★584 rev
Newest
by launch date3 7L Kleines Betta Aquarium Komplettset Mini Aquarium aus Acryl mit Filterpumpe LED-Beleuchtung ideal für kleine Fische Garnelen und Pflanzen (Schwarz)
Vehipa€34.57115 rev
16L Nano Aquarium Komplettset Intelligentes Aquarium Klein mit automatischer Futterstation geräuscharmer 4-in-1-Pumpe Einstellbarer 8-Farben-Beleuchtung Temperaturanzeige und Luftbefeuchter
Vehipa€92.7741 rev
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€34.71115 rev
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€67.630 rev
Aquarium Desktop-Set 10L Kleines Fischbecken 30x15x22 Ultra-Klares Glas mit Selbstreinigungsfilter Helles Licht Heizung Steine Kies Reinigungswerkzeug Randloses Fischglas für Anfänger Starterkit
Wonderfactory€55.8898 rev
Trending
90-day click momentum16L Nano Aquarium Komplettset Intelligentes Aquarium Klein mit automatischer Futterstation geräuscharmer 4-in-1-Pumpe Einstellbarer 8-Farben-Beleuchtung Temperaturanzeige und Luftbefeuchter
Vehipa€92.774.5★
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€67.630.0★
Dennerle Nano Cube 20 L - Das Original
Dennerle€41.744.7★
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€105.254.7★
Aquarium Desktop-Set 10L Kleines Fischbecken 30x15x22 Ultra-Klares Glas mit Selbstreinigungsfilter Helles Licht Heizung Steine Kies Reinigungswerkzeug Randloses Fischglas für Anfänger Starterkit
Wonderfactory€55.884.2★
What buyers say about aquarium
What buyers praise and complain about, mined from review topics.What buyers love
“Super Aquarium, top Verarbeitung”
“Preis-Leistung Super”
“Erfüllt sein Zweck”
“Passt”
“Schönes Design, sieht sehr schick aus”
“Schnell und unkompliziert”
“Filter”
“Shrimpies yummyumm”
“Hält lange”
“LED - Beleuchtung sehr schön”
What buyers complain about
“War leider am 2. TAG schon die Filterpumpe defekt”
“Kleine Aquarium”
“die Pumpe war nach 5 Minuten laufen kaputt”
“Minderwertige Qualität und fest eingebautes Pumpengehäuse”
“Wasserwechsel total umständlich”
“Abbildung entspricht nicht dem gelieferten Produkt”
“Heizstab funktioniert nicht”
“Montage nach Anleitung der Pumpe verbesserungswürdig”
“Evtl etwas teuer”
“Läuft aus”
Top return reasons
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.