Fish Tank Filter Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Fish Tank Filter sales on Amazon US totaled 75,900 units in July 2026 (▲ 3.4% vs. the prior month), generating an estimated $1,241,628 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 47.4% of unit volume and 34.7% of revenue, while a typical listing is priced at $20.67. The keyword itself pulled 20,796 Amazon queries over the same period (▲ 10.2% MoM).
Zooming out to the 12-month window ending July 2026, the fish tank filter Top 50 moved 822,650 units and $13,108,941 in cumulative sales — an average of 68,554 units and $1,092,412 per month. Monthly throughput topped out at 76,200 units in August 2025 and dipped to 42,200 in May 2026, leaving the latest reading 0.4% lower than August 2025.
Fish Tank Filter Sales Trend (Trailing 12 Months)
Based on the top 50 ASINs by monthly sales for this keyword
2025/08
2025/09
2025/10
2025/11
2025/12
2026/01
2026/02
2026/03
2026/04
2026/05
2026/06
2026/07
Monthly Sales 2026/07
75.9K
▲ 3.4% MoM
Monthly Revenue 2026/07
$1.2M
▲ 1.6% MoM
Top 10 Market Share 2026/07
47.4%
Fish Tank Filter Market Share & Sales Concentration on Amazon US — July 2026
The most-sold fish tank filter listing on Amazon US in July 2026 is ASIN B0006JM09E (Brand: Tetra), which sold 6,000 units at $6.47 apiece — equal to 7.9% of every unit tracked in this report and 20% ahead of the No. 2 listing.
The Top 10 ASINs account for 36,000 units and $430,950 in July 2026 — 47.4% of unit volume and 34.7% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Fish Tank Filter' on Amazon
July 2026
Is 47.4% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown
B0006JM09E
Tetra Whisper Bio-Bag Medium Filter Cartridges for Aquariums, 3 Count | Ready to Use, Fits Tetra Whisper Fish Tank Filters 5-10 Gal, PF-10, IQ 10, Replace Monthly
6K
▲ 0.0%vs. prior month
$38.8K
latest month
12-month trend
B000HHLQO0
API ACCU-CLEAR Freshwater Aquarium Water Clarifier 8-Ounce Bottle
5K
▲ 0.0%vs. prior month
$47.4K
latest month
12-month trend
B001DCZUO0
Tetra Whisper Bio-Bag Large Filter Cartridges for Aquariums, 12 Count | Unassembled, Fits Tetra Whisper Fish Tank Filters 10-30 Gal, 20-40 Gal, PF-20, 30, 40, 60, IQ 20, 30, 45, 60, Replace Monthly
5K
▲ 0.0%vs. prior month
$72.8K
latest month
12-month trend
B0006JM09O
Tetra Whisper Bio-Bag Large Filter Cartridges for Aquariums, 3 Count | Ready to Use, Fits Tetra Whisper Fish Tank Filter 10-30 Gal, 20-40 Gal, PF-20, 30, 40, 60, IQ 20, 30, 45, 60, Replace Monthly
3K
▲ 200.0%vs. prior month
$19.4K
latest month
12-month trend
B000256EKS
Marineland Bio-Wheel Penguin Rite-Size C Aquarium Filter Cartridge, 6 Count | Ready-To-Use, Fits Marineland Penguin Bio-Wheel Fish Tank Filters 200 & 350, With Premium Activated Carbon, Replace Monthly
3K
▲ 0.0%vs. prior month
$59.9K
latest month
12-month trend
B0002DHYF4
Tetra Whisper 85 GPH Internal Power Filter For Aquariums | For Fish Tanks Up To 10 Gallons, Whisper Quiet, Space-Saving Internal Filter Clips on Tank
3K
▲ 0.0%vs. prior month
$47.9K
latest month
12-month trend
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Best Fish Tank Filter Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Tetra is the best-performing fish tank filter brand in July 2026, moving 22,000 units across 6 ASINs for 61.1% of Top 10 volume. API follows with 5,000 units (13.9%), ahead of MarineLand on 3,000 units (8.3%).
With 5 brands splitting the Top 10 and 83.3% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $9.48 to $19.97, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Tetra
6 ASINs in Top 10
61.1%
Units
22K
Revenue
$263.7K
Avg. price
$12.14
B0006JM09E
$6.47·★4.7·28.2K revsTetra Whisper Bio-Bag Medium Filter Cartridges for Aquariums, 3 Count | Ready to Use, Fits Tetra Whisper Fish Tank Filters 5-10 Gal, PF-10, IQ 10, Replace Monthly
Units sold6KB001DCZUO0
$14.57·★4.7·16.8K revsTetra Whisper Bio-Bag Large Filter Cartridges for Aquariums, 12 Count | Unassembled, Fits Tetra Whisper Fish Tank Filters 10-30 Gal, 20-40 Gal, PF-20, 30, 40, 60, IQ 20, 30, 45, 60, Replace Monthly
Units sold5KB0006JM09O
$6.47·★4.7·13.2K revsTetra Whisper Bio-Bag Large Filter Cartridges for Aquariums, 3 Count | Ready to Use, Fits Tetra Whisper Fish Tank Filter 10-30 Gal, 20-40 Gal, PF-20, 30, 40, 60, IQ 20, 30, 45, 60, Replace Monthly
Units sold3KB0002DHYF4
$15.97·★4.2·22.6K revsTetra Whisper 85 GPH Internal Power Filter For Aquariums | For Fish Tanks Up To 10 Gallons, Whisper Quiet, Space-Saving Internal Filter Clips on Tank
Units sold3KB01NC2P7BM
$23.17·★4.2·14K revsTetra Whisper IQ 130 GPH Power Filter for Aquariums | For Fish Tanks Up To 20 Gallons, Whisper Quiet, Freshwater Or Marine Fish, Stay Clean Technology For Healthy pH Levels
Units sold3KB000HHLKRI
$6.17·★4.7·12.1K revsTetra ReptoFilter Medium Filter Cartridges for Terrariums, 3 Count | For TetraFauna ReptoFilter 20 gal, Viquarium & Decorative ReptoFilter, Removea Debris, Waste & Odors, Replace Every 4 Weeks
Units sold2K
API
1 ASIN in Top 10
13.9%
Units
5K
Revenue
$47.4K
Avg. price
$9.48
B000HHLQO0
$9.48·★4.6·20.3K revsAPI ACCU-CLEAR Freshwater Aquarium Water Clarifier 8-Ounce Bottle
Units sold5K
MarineLand
1 ASIN in Top 10
8.3%
Units
3K
Revenue
$59.9K
Avg. price
$19.97
B000256EKS
$19.97·★4.7·28.9K revsMarineland Bio-Wheel Penguin Rite-Size C Aquarium Filter Cartridge, 6 Count | Ready-To-Use, Fits Marineland Penguin Bio-Wheel Fish Tank Filters 200 & 350, With Premium Activated Carbon, Replace Monthly
Units sold3K
Trending Fish Tank Filter Products — Growth Leaders & New Top 10 Entrants
Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B0006JM09O booked 3K units at $6.47, with ▲ 200.0% MoM change. On the growth side, B0002DHZKS leads positive momentum with ▲ 400.0% MoM growth on 1K units, with B0FRSBKP5S close behind at ▲ 300.0% MoM on 400 units.
The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.
B0006JM09O
Tetra Whisper Bio-Bag Large Filter Cartridges for Aquariums, 3 Count | Ready to Use, Fits Tetra Whisper Fish Tank Filter 10-30 Gal, 20-40 Gal, PF-20, 30, 40, 60, IQ 20, 30, 45, 60, Replace Monthly
Price
$6.47
Rating
4.7
Reviews
13.2K
Latest month sales
B0002DHZKS
Tetra Whisper Bio-Bag Medium Filter Cartridges for Aquariums, 12 Count | Unassembled, Fits Tetra Whisper Fish Tank Filters 55-10 Gal, PF-10, IQ 10, Replace Monthly
Price
$14.57
Rating
4.7
Reviews
28.2K
Latest month sales
B0FRSBKP5S
PONDFORSE Canister Filter, External Aquarium Filter Ultra-Quiet with Media | Adjustable Flow Rate, Multiple Filtration Approaches, Powerful Water Circulation Cleaning Machine for Fish Tanks and Aquarium
Unlock to view ASIN details and product titles
Price
$75.99
Rating
3.9
Reviews
1.7K
Latest month sales
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