Is aquarium kies profitable to sell on Amazon Germany?

The niche generates €148K/yr across 9 tracked products. 90-day search growth is -30.9%. Flapen's verdict: Skip it (37/100).

How competitive is the aquarium kies niche?

9 brands and 16 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 85% of demand.

What do buyers complain about in aquarium kies?

Top complaints mined from reviews: Helligkeit/Glanz/Glühen, Kontamination, Geruch. The return rate is 0.4%.

When does demand for aquarium kies peak?

Demand peaks in Jan–Feb; the busiest month runs 1.7× the quietest.

What does it cost to enter the aquarium kies niche?

Listings span €7.60–€19.95; the average listing price is €13.87 (sweet spot $15–$100). The average incumbent carries 1,338 reviews — the moat a new listing must climb.

aquarium kies

Skip it

Soft demand (-30.9% this quarter) — this niche doesn't clear our bar today.

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Avg price

Good€13.87

avg listing price — sweet spot $15–$100

Review moat

Good1,337.78

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Price range

Okay€7.60–€19.95

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

Conversion

Okay2.8%

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

Brand share

Okay85%

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

Market size

Okay€148K

€148K/yr · 379K searches

Competition

Bad85%

top-5 click share — a locked-up shelf

Growth

Bad-30.9%

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

According to Flapen's Amazon Germany niche tracking, aquarium kies is a €148K/yr Amazon Germany market (379K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Jan–Feb. Verdict: Skip it — 37/100.

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

aquarium kies market data

Units sold / yr: 15K–20K; avg 750–1,000/product
Revenue / yr: €208K–€277K; units × avg price
Conversion rate: 2.8%
Avg BSR: #62
Page quality: 0%
Prime: 56%
Sponsored: 89%
Out of stock: 4.5%
Avg brand age: 56 months
Avg seller age: 178 days

Competition & brand share

The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

Top-5 brand share

85%

Top 20: 100%

Top-5 click share

85%

Top 20: 100%

Open market

11%

mituso60%
Samore7%
Pleinfelder Quarzsand6%
KARLOR6%
Dehner6%
RIFNY4%
Open — no brand owns it (3 brands, 11%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -30.9% search growth over the last 90 days.

Peak months: Jan, Feb · busiest ÷ quietest = 1.7×

Open Trend

Top aquarium kies search terms

aquarium kies154K/yr -33.3%0.2% conv.
aquarium sand110K/yr -34.4%0.4% conv.
aquarienkies21K/yr -16.7%0.1% conv.
aquariumkies18K/yr -19.9%0.3% conv.
kies aquarium15K/yr -25.3%0.1% conv.
aquariensand11K/yr -15.4%0.5% conv.
aquarium kies 25kg14K/yr -33.9%0.0% conv.
aquariumsand12K/yr -25.8%0.6% conv.
sand aquarium10K/yr -31.5%0.5% conv.
aquarium kies 10kg6K/yr -24.5%0.0% conv.

All search terms

Top aquarium kies 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 9 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

mituso Quarzsand Filtersand Körnung 0 4-0 8mm Aquariumsand (1 x 25kg)

mituso€14.954.7★2,765 rev

Samore 25 KG AQUARIUMSAND AQUARIENSAND BODENGRUND 0 1-0 3 mm AQUARIENKIES HOCHREIN NATURWEISS

Samore€19.954.5★903 rev

Pleinfelder Quarzsand Aquariumsand Quarzsand für Aquarium feuergetrockneter Quarzsand Körnung: 0 1-0 4mm 20kg Säcke

Pleinfelder Quarzsand€19.214.8★8 rev

KARLOR 6000 Stück Kieselsteine aus Kunstharz Leuchtende Kleiner Kies Nachtleuchtend Steine Floureszierende Pebble Leuchtsteine für Aquarium Gartenarbeit Dekorsteine Aquascape 3-5 mm/150g (Hellblau)

KARLOR€7.603.6★58 rev

Dehner Aqua Aquarienkies Körnung 4 - 6 mm 5 kg Farbmix

Dehner€11.884.7★36 rev

Newest

by launch date

WOLFF & MÜLLER Aquariensand | Reiner Quarzsand als Bodengrund | Sand für Aquarium in verschiedenen Körnungen | im 25kg Sack (0.71-1. 25mm)

WOLFF & MÜLLER€19.348 rev

1y ago

KARLOR 6000 Stück Kieselsteine aus Kunstharz Leuchtende Kleiner Kies Nachtleuchtend Steine Floureszierende Pebble Leuchtsteine für Aquarium Gartenarbeit Dekorsteine Aquascape 3-5 mm/150g (Hellblau)

KARLOR€7.6058 rev

1y ago

Pleinfelder Quarzsand Aquariumsand Quarzsand für Aquarium feuergetrockneter Quarzsand Körnung: 0 1-0 4mm 20kg Säcke

Pleinfelder Quarzsand€19.218 rev

2y ago

Dehner Aqua Aquarienkies Körnung 4 - 6 mm 5 kg Farbmix

Dehner€11.8836 rev

3y ago

RIFNY Kieselsteine für Aquarium Blumentopf Deko Steine kleine Natur Kristall Achat Kies für Sukkulenten Kaktus Terrarium DIY Balkon Pflanztöpfen Dekorative 680g Gemischt

RIFNY€11.331,043 rev

5y ago

What buyers say about aquarium kies

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

What buyers love

Qualität insgesamt31%

“Super Ware”

Preis-Leistungs-Verhältnis21%

“Preis-Leistung super”

beworben Vs Tatsächliches Produkt19%

“erfühlt alle erwartungen”

Filterung6%

“Funktioniert bei mir deutlich besser als filterbälle”

Verzierungs/Stickereiqualität4%

“Tolle Dekosteine”

Farbe4%

“Farbe ist sehr natürlich”

Wasserfluss4%

“Super 👍 Ich bin sehr zufrieden der Sand trübt nich mal das Wasser ein das hatte ich noch nie”

Design insgesamt4%

“Schön sieht er aus - keine Frage”

Helligkeit/Glanz/Glühen2%

“Der Sand ist wirklich sehr hell”

Wasserbeständigkeit2%

“Bei mir war das Wasser glasklar”

What buyers complain about

Helligkeit/Glanz/Glühen17%

“Haben nicht geleuchtet”

Kontamination17%

“sich der Inhalt überall verteilt”

Geruch17%

“das Tödet die Pflanzenwurzel dadurch Stinkt das Aquariumwasser ständig nach verfaulften Eiern.”

Einfache Reinigung17%

“nur etwas staubig”

Auslaufsicher17%

“das Substrat ist ausgelaufen.”

Farbe17%

“ist zwar weiß”

Top return reasons

Gesamtgröße23%

Defekt Material/Teile22%

Auslaufsicher8%

Kompatibilität – insgesamt7%

Gewicht schwer7%

Preis-Leistungs-Verhältnis7%

beworben Vs Tatsächliches Produkt7%

Materialqualität3%

Funktionalität insgesamt3%

Qualität insgesamt3%

Common questions

Is aquarium kies profitable to sell on Amazon Germany?: The niche generates €148K/yr across 9 tracked products. 90-day search growth is -30.9%. Flapen's verdict: Skip it (37/100).
How competitive is the aquarium kies niche?: 9 brands and 16 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 85% of demand.
What do buyers complain about in aquarium kies?: Top complaints mined from reviews: Helligkeit/Glanz/Glühen, Kontamination, Geruch. The return rate is 0.4%.
When does demand for aquarium kies peak?: Demand peaks in Jan–Feb; the busiest month runs 1.7× the quietest.
What does it cost to enter the aquarium kies niche?: Listings span €7.60–€19.95; the average listing price is €13.87 (sweet spot $15–$100). The average incumbent carries 1,338 reviews — the moat a new listing must climb.