Is aquarium filtermaterial profitable to sell on Amazon Germany?

The niche generates €130K/yr across 53 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -36.6%. Flapen's verdict: Skip it (46/100).

How competitive is the aquarium filtermaterial niche?

14 brands and 74 sellers compete. The top 5 products take 36% of clicks and top 5 brands hold 89% of demand.

What do buyers complain about in aquarium filtermaterial?

Top complaints mined from reviews: Haltbarkeit, Filterung, Preis-Leistungs-Verhältnis. The return rate is 0.9%.

When does demand for aquarium filtermaterial peak?

Demand is steady year-round — the busiest month runs 1.6× the quietest.

What does it cost to enter the aquarium filtermaterial niche?

Listings span €4.86–€225.46; the average listing price is €27.37 (sweet spot $15–$100). The average incumbent carries 1,776 reviews — the moat a new listing must climb.

aquarium filtermaterial

Skip it

Soft demand (-36.6% this quarter) — this niche doesn't clear our bar today.

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Avg price

Incredible€27.37

avg listing price — sweet spot $15–$100

Competition

Great36%

top-5 click share — an open shelf

Conversion

Okay3.7%

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

Review moat

Okay1,776.04

avg incumbent reviews — the moat a new listing must climb

Price range

Okay€4.86–€225.46

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Market size

Okay€130K

€130K/yr · 127K searches

Brand share

Okay89%

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

Growth

Bad-36.6%

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

According to Flapen's Amazon Germany niche tracking, aquarium filtermaterial is a €130K/yr Amazon Germany market (127K searches/yr). The top 5 brands hold 89% of demand. Verdict: Skip it — 46/100.

Data updated Jul 13, 2026 · scored weekly · How we score niches

aquarium filtermaterial market data

Units sold / yr: 5K–6K; avg 0–100/product
Revenue / yr: €137K–€164K; units × avg price
Conversion rate: 3.7%
Avg BSR: #198
Page quality: 0%
Prime: 85%
Sponsored: 58%
Out of stock: 6.5%
Avg brand age: 59 months
Avg seller age: 186 days

Competition & brand share

Clicks spread well past the top 5 (36% combined) — an open shelf where new products get seen.

Brands

14 rising

Sellers

Top-5 brand share

89%

Top 20: 100%

Top-5 click share

36%

Top 20: 70%

Open market

sera40%
Fluval27%
Easy Life15%
MUYYIKA4%
Hobby3%
beaufan2%
Open — no brand owns it (8 brands, 9%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -36.6% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.6×

Open Trend

Top aquarium filtermaterial search terms

fluval filter18K/yr -28.0%2.2% conv.
aquarium filtermaterial18K/yr -33.1%2.7% conv.
easy life14K/yr -29.9%1.6% conv.
fluval18K/yr -37.5%0.4% conv.
sera siporax11K/yr -43.9%3.7% conv.
filtermaterial aquarium11K/yr -45.6%3.1% conv.
siporax9K/yr -43.7%2.6% conv.
aquarium filter zubehör5K/yr -36.4%0.3% conv.
filtermedium aquarium5K/yr -39.6%4.1% conv.
siporax filtermaterial5K/yr -40.0%4.3% conv.

All search terms

Top aquarium filtermaterial 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

sera siporax mini Professional 1.000 ml (270 g) | biologisches Filtermedium für kleine & Nano-Aquarien | hochporöses Sinterglas für stabile Wasserwerte

sera€9.234.6★1,733 rev

sera siporax bio active 210g (für 400l) die neue Art der Wasseraufbereitung reduziert schon nach 24h Ammonium Nitrit Nitrat und ist ein selbst reinigendes Hochleistungsfiltermedium in Tabellenform

sera€7.664.7★1,031 rev

38 Verschiedene Easy Life Sorten und Größen 250 ml - 5 Liter Profito Carbo Kalium AlgExit BlueExit Voogle UVM. (Easy Life Filter 1 L)

Easy Life€20.824.8★530 rev

sera Crystal Clear Professional 12 STK | Hochleistungs-Filterbälle für Aquarium | Entfernt Trübungen ab 10m | Formstabil & wiederverwendbar | Für Süß- & Meerwasser

sera€7.604.6★1,473 rev

sera siporax Professional 10 L (2 9 kg) | Hochleistungs Aquarium Filtermaterial zur biologischen Reinigung | Premium Filterringe aus gesintertem Glas | Aquariumzubehör für Süß- & Meerwasser

sera€82.104.8★4,469 rev

Newest

by launch date

beaufan 7er-Pack Filtermedien-Sets kompatibel mit Fluval Flex 15G (57 Liter) Aquarien enthält 2 Aktivkohle-Nachfüllpackungen 2 Schaumstoff-Filtereinsätze 2 Keramikringe (Biomax) und 1 Filterkabel

beaufan€26.0822 rev

1y ago

Fluval AquaClear AC20 Hochleistungsfilter 1876 l

Fluval€32.05758 rev

1y ago

Nobleza - 12 in 1 Aquarium-Filtermedien Keramikring Poröser Filter Aquarium Biofilter für Aquarien und Fischteiche (500g)

Nobleza€8.79310 rev

2y ago

MUYYIKA Aquarium-Filtermedien Zubehör für Aquariumfilter Keramikringe Biologische Filtermedium Keramikringe Biokugeln Poröser Filte Biochemischer Ball 400g

MUYYIKA€7.38123 rev

3y ago

38 Verschiedene Easy Life Sorten und Größen 250 ml - 5 Liter Profito Carbo Kalium AlgExit BlueExit Voogle UVM. (Easy BlueExit 1 L)

Easy Life€22.01160 rev

4y ago

What buyers say about aquarium filtermaterial

What buyers praise and complain about, mined from review topics.

What buyers love

Filterung32%

“Super Filter”

Qualität insgesamt22%

“Super Produkt”

beworben Vs Tatsächliches Produkt7%

“Wie erwartet”

Preis-Leistungs-Verhältnis5%

“Aquarium wert super”

Gesamtgröße5%

“Passt perfekt”

Einfache Reinigung4%

“Ausbauen und Reinigung Der Filter Matten geht gut”

Stärke4%

“Stabile Ausführung, gute Bedienungsanleitung, leicht zugänglich zur Reinigung”

Wasserbeständigkeit3%

“Sorgt für gute Wasserqualität”

Benutzerfreundlichkeit2%

“Super easy und einfach”

Wasserfluss2%

“hält das Wasser klar”

What buyers complain about

Haltbarkeit21%

“sie fällt fast täglich ab.”

Filterung20%

“Unnötige Filterung Kohle”

Preis-Leistungs-Verhältnis5%

“Sehr schade um das Geld”

Gesamtgröße5%

“klein”

Funktionalität insgesamt5%

“Leider vollkommen ohne Wirkung”

Heizung5%

“sehr warm, als ich sie berührte”

Qualität insgesamt4%

“Müll”

Kontamination3%

“Filterbakterien”

Wasserfluss3%

“das Aquarienwasser strömt daran vorbei.”

Farbe2%

“das Wasser ist schwarz.”

Top return reasons

Gesamtgröße33%

Filterung21%

Kompatibilität – insgesamt11%

Defekt Material/Teile8%

Funktionalität insgesamt6%

beworben Vs Tatsächliches Produkt4%

Produktzustand3%

Stärke2%

Qualität insgesamt2%

Auslaufsicher2%

Common questions

Is aquarium filtermaterial profitable to sell on Amazon Germany?: The niche generates €130K/yr across 53 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -36.6%. Flapen's verdict: Skip it (46/100).
How competitive is the aquarium filtermaterial niche?: 14 brands and 74 sellers compete. The top 5 products take 36% of clicks and top 5 brands hold 89% of demand.
What do buyers complain about in aquarium filtermaterial?: Top complaints mined from reviews: Haltbarkeit, Filterung, Preis-Leistungs-Verhältnis. The return rate is 0.9%.
When does demand for aquarium filtermaterial peak?: Demand is steady year-round — the busiest month runs 1.6× the quietest.
What does it cost to enter the aquarium filtermaterial niche?: Listings span €4.86–€225.46; the average listing price is €27.37 (sweet spot $15–$100). The average incumbent carries 1,776 reviews — the moat a new listing must climb.