Aquarium Filter Sponge
soft demand (-6.1% this quarter) — Aquarium Filter Sponge doesn't clear our bar today.
Flapen Score
Ranks 3,275 of 3,978 Pet Supplies niches · −10 vs the category median of 51
Is Aquarium Filter Sponge profitable on Amazon?
According to Flapen's Amazon United States niche tracking, Aquarium Filter Sponge is a $116K/yr Amazon United States market (195K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in May. Verdict: Skip it — 41/100.
Aquarium Filter Sponge: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -6.1% over the last 90 days and 6.9% of searches end in a purchase.
$116K
revenue / yr
Who owns the niche?
The top 5 brands hold 90% of demand, so 10% of the market is open.
10%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.
0/100
page quality · 20 products
Top Aquarium Filter Sponge 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
AQUANEAT 6-Pack Pre-Filter Sponge for Aquarium Shrimp Fry Fish Tank Filter 0.8 Intake Replacement Foam Cover
- Price
- $6.05
- Rating
- 4.5/5
- Reviews
- 2,192
- Age
- 4y ago

ALEGI Aquarium Sponge Filter Pad Bio Filter Media Foam Sponges Cut-to-Size Foam for Fish Tank (20x20x1 (20PPI))
- Price
- $9.03
- Rating
- 4.7/5
- Reviews
- 1,939
- Age
- 3y ago

AQUANEAT 2 Pack Aquarium Bio Sponge Filter Media Pad Cut-to-Size Open Cell Foam Sheet for Fish Tank Sump (9 x 9 x 0.5) Black
- Price
- $6.07
- Rating
- 4.6/5
- Reviews
- 370
- Age
- 4y ago

Fluval Edge Pre-Filter Sponge Replacement Aquarium Filter Media A1387
- Price
- $4.24
- Rating
- 4.6/5
- Reviews
- 4,925
- Age
- 22y ago

AQUANEAT 6-Pack Replacement Filter Sponge Pads Aquarium Foam Insert Compatible with AquaClear 50 Fish Tank Filter Media
- Price
- $6.37
- Rating
- 4.4/5
- Reviews
- 271
- Age
- 1y ago
Trending
90-day click momentum
AQUANEAT Aquarium Filter Sponge 8-Layer Filter Media Pad Cut-to-Size Foam Floss for Fish Tank Sump Pond (16 x 12 x 0.6)
- Price
- $5.73
- Rating
- 4.4/5
- Reviews
- 79
- Age
- 11mo ago

AQUANEAT 6-Pack Pre-Filter Sponge for Aquarium Shrimp Fry Fish Tank Filter 1 Intake Replacement Foam Cover
- Price
- $14.84
- Rating
- 4.5/5
- Reviews
- 2,192
- Age
- 4y ago

AQUANEAT 2 Pack Aquarium Bio Sponge Filter Media Pad Cut-to-Size Open Cell Foam Sheet for Fish Tank Sump (9 x 9 x 0.5) Black
- Price
- $6.07
- Rating
- 4.6/5
- Reviews
- 370
- Age
- 4y ago

AQUANEAT 12-Pack Pre-Filter Sponge for Aquarium Shrimp Fry Fish Tank Filter Intake 0.6 Inch Replacement Foam Cover
- Price
- $7.86
- Rating
- 4.5/5
- Reviews
- 173
- Age
- 1y ago

ALEGI Aquarium Sponge Filter Pad Bio Filter Media Foam Sponges Cut-to-Size Foam for Fish Tank (20x20x1 (20PPI))
- Price
- $9.03
- Rating
- 4.7/5
- Reviews
- 1,939
- Age
- 3y ago
Newest
by launch date
AQUANEAT Aquarium Filter Sponge 8-Layer Filter Media Pad Cut-to-Size Foam Floss for Fish Tank Sump Pond (16 x 12 x 0.6)
- Price
- $5.73
- Rating
- 4.4/5
- Reviews
- 79
- Age
- 11mo ago

hygger Aquarium Sponge Filter Pad Filter Media Foam Sponges Cut-to-Size Open Cell Foam Sheet for Fish Tanks and Ponds S (4 Pack 5.9 * 3.9 * 1 inch)
- Price
- $9.31
- Rating
- 4.6/5
- Reviews
- 72
- Age
- 1y ago

Borlech Aquarium Bio Filter Sponge Pad - Cut-to-Size Aquarium Filter Media for Fish Tank Pond Sump - Mechanical & Biological Filtration (18.5x18.5x0.8 20PPI 1 Pack)
- Price
- $8.52
- Rating
- 4.6/5
- Reviews
- 773
- Age
- 1y ago

AQUANEAT 6-Pack Replacement Filter Sponge Pads Aquarium Foam Insert Compatible with AquaClear 50 Fish Tank Filter Media
- Price
- $6.37
- Rating
- 4.4/5
- Reviews
- 271
- Age
- 1y ago

Borlech 8-Layer Fast-Acting Aquarium Filter Pad - Cut-to-Size Aquarium Floss Media for Fish Tank Pond Sump - Fast Water Polishing in Hours (15.75x11.81x0.6 1 Pack)
- Price
- $7.16
- Rating
- 4.5/5
- Reviews
- 1,048
- Age
- 1y ago
Competition: brands, sellers & click share
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.
Brands
9 falling
Sellers
19
Top-5 brand share
90%
Top 20: 100%
Top-5 click share
64%
Top 20: 100%
Open market
7%
- AQUANEAT59%
- ALEGI17%
- Pawfly5%
- Fluval5%
- HUYAYA4%
- Borlech3%
- Open — no brand owns it (3 brands, 7%)
Aquarium Filter Sponge demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: May · busiest ÷ quietest = 1.8×
Top Aquarium Filter Sponge search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- aquarium filter sponge63K/yr
- filter sponge26K/yr
- pre filter sponge18K/yr
- fish tank filter sponge14K/yr
- prefilter sponge10K/yr
- filter sponges fish tank14K/yr
- fish filter sponge9K/yr
- pre filter sponge aquarium7K/yr
- aquarium prefilter sponge5K/yr
- prefilter sponge for aquarium8K/yr
What reviews say buyers love and hate about Aquarium Filter Sponge
What buyers mention most, as a share of all reviews.
What buyers love
90% of reviews“Filter is good quality”
“fits like a glove”
“I think they are well made”
“Good deal”
“It keeps the tank clean”
What buyers complain about
71% of reviews“Material is too thin”
“Too small”
“Filter dimensions inaccurate”
“Not as advertised”
“its lower quality”
Aquarium Filter Sponge return rate & reasons
Why buyers send it back, as a share of all return requests.
1.2%
Return rate
62%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Aquarium Filter Sponge 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.









