Aquarium Filter
Aquarium Filter shows a $4.7M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Flapen Score
Top 12% of 3,978 Pet Supplies niches · +10 vs the category median of 51
Is Aquarium Filter profitable on Amazon?
According to Flapen's Amazon United States niche tracking, Aquarium Filter is a $4.7M/yr Amazon United States market (3.4M searches/yr). The top 5 brands hold 72% of demand. Verdict: Worth a look — 61/100.
Aquarium Filter: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved -6.2% over the last 90 days and 4.6% of searches end in a purchase.
$4.7M
revenue / yr
Who owns the niche?
The top 5 brands hold 72% of demand, so 28% of the market is open.
28%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.2★ — the gap to enter on.
0/100
page quality · 44 products
Top Aquarium Filter products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Tetra Whisper IQ Power Filter 20 Gallons 130 GPH with Stay Clean Technology
- Price
- $21.18
- Rating
- 4.2/5
- Reviews
- 13,787
- Age
- 9y ago

Tetra Whisper Internal Power Filter Medium Bio-Bag Filter Cartridges 3-Stage Filtration 5-10 gal
- Price
- $15.61
- Rating
- 4.3/5
- Reviews
- 22,392
- Age
- 22y ago

NICREW Slim Aquarium Filter Quiet Fish Tank HOB Filters for up to 5 Gallon Aquariums Adjustable Flow 42 GPH 3W
- Price
- $12.34
- Rating
- 4.1/5
- Reviews
- 2,763
- Age
- 2y ago

Marineland Bio-Wheel Penguin 350 GPH Power Aquarium Filter Ultra-Quiet Hang-On-Back Fish Tank Filter with Multi-Stage Filtration for Aquariums Up to 60 Gallons
- Price
- $43.62
- Rating
- 4.3/5
- Reviews
- 41,200
- Age
- 22y ago

Marineland Bio-Wheel Penguin 200 GPH Power Aquarium Filter Ultra-Quiet Hang-On-Back Fish Tank Filter with Multi-Stage Filtration for Aquariums Up to 40 Gallons
- Price
- $37.91
- Rating
- 4.3/5
- Reviews
- 41,200
- Age
- 22y ago
Trending
90-day click momentum
QiQiWader Fish Tank Filter 10-40 Gallon Fish Tank Filter 6W 130GPH Equipped with Adjustable Aeration Function.
- Price
- $16.18
- Rating
- 3.8/5
- Reviews
- 51
- Age
- 5mo ago

265 GPH 4-in-1 aquarium filter 20-80 gallon fish tank filters Filtration and Oxygenation filter for fish tank with biochemical cotton ceramic beads Multi-functional turtle tank filter(15 W)
- Price
- $19.98
- Rating
- 4.4/5
- Reviews
- 63
- Age
- 11mo ago

QiQiWader Small Aquarium Filter Fish Tank Filter Suitable for 3-10 Gallon Fish Tanks 3W 80GPH with Two Modes Switching Function.
- Price
- $16.80
- Rating
- 4.1/5
- Reviews
- 98
- Age
- 9mo ago

Aqua-Tech Ultra Quiet Power Filter For Aquariums 10-20 Gallons
- Price
- $20.38
- Rating
- 4.3/5
- Reviews
- 6,886
- Age
- 5y ago

Marineland Bio-Wheel Penguin 200 GPH Power Aquarium Filter Ultra-Quiet Hang-On-Back Fish Tank Filter with Multi-Stage Filtration for Aquariums Up to 40 Gallons
- Price
- $37.91
- Rating
- 4.3/5
- Reviews
- 41,200
- Age
- 22y ago
Newest
by launch date
QiQiWader Fish Tank Filter 10-40 Gallon Fish Tank Filter 6W 130GPH Equipped with Adjustable Aeration Function.
- Price
- $16.18
- Rating
- 3.8/5
- Reviews
- 51
- Age
- 5mo ago

QiQiWader Small Aquarium Filter Fish Tank Filter Suitable for 3-10 Gallon Fish Tanks 3W 80GPH with Two Modes Switching Function.
- Price
- $16.80
- Rating
- 4.1/5
- Reviews
- 98
- Age
- 9mo ago

hygger Quiet Hang On Back Aquarium Filter 5-30 Gallon Small Fish Tank Canister Filter with Surface Skimmer Spray Bar 3 Floss Pads Bio Filter Media Adjustable Flow Easy Water Change 132 GPH
- Price
- $42.34
- Rating
- 3.9/5
- Reviews
- 204
- Age
- 10mo ago

265 GPH 4-in-1 aquarium filter 20-80 gallon fish tank filters Filtration and Oxygenation filter for fish tank with biochemical cotton ceramic beads Multi-functional turtle tank filter(15 W)
- Price
- $19.98
- Rating
- 4.4/5
- Reviews
- 63
- Age
- 11mo ago

PONDFORSE Canister Filter External Aquarium Filter Ultra-Quiet Water Circulation Cleaning Machine with Media for Fish Tanks and Aquariums
- Price
- $62.85
- Rating
- 4.0/5
- Reviews
- 1,539
- Age
- 1y ago
Competition: brands, sellers & click share
The top 5 products take 41% of clicks — established leaders, but buyers still shop beyond them.
Brands
23 falling
Sellers
82
Top-5 brand share
72%
Top 20: 98%
Top-5 click share
41%
Top 20: 76%
Open market
24%
- Tetra46%
- MarineLand9%
- NICREW7%
- DaToo5%
- QiQiWader4%
- PONDFORSE4%
Aquarium Filter demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.2×
Top Aquarium Filter search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- aquarium filter958K/yr
- fish tank filters620K/yr
- fish tank filter331K/yr
- fish filter168K/yr
- 10 gallon fish tank filter134K/yr
- 20 gallon fish tank filter105K/yr
- aquarium filters117K/yr
- filter for fish tank104K/yr
- small fish tank filter93K/yr
- filtro para pecera84K/yr
What reviews say buyers love and hate about Aquarium Filter
What buyers mention most, as a share of all reviews.
What buyers love
80% of reviews“Great filtration system”
“Cost effective”
“Excellent product”
“Easy to clean”
“Fit as expected”
What buyers complain about
75% of reviews“Comes apart”
“Does not filter at all”
“Get something higher quality”
“it doesnt work very well”
“Leaked”
Aquarium Filter return rate & reasons
Why buyers send it back, as a share of all return requests.
2.8%
Return rate
52%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Aquarium Filter questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









