Fish Tank Filters Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Fish Tank Filters sales on Amazon US totaled 78,200 units in July 2026 (▼ 0.9% vs. the prior month), generating an estimated $1,175,614 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 46.0% of unit volume and 37.9% of revenue, while a typical listing is priced at $17.49. The keyword itself pulled 32,186 Amazon queries over the same period (▲ 2.6% MoM).
Zooming out to the 12-month window ending July 2026, the fish tank filters Top 50 moved 864,850 units and $12,452,723 in cumulative sales — an average of 72,071 units and $1,037,727 per month. Monthly throughput topped out at 79,000 units in October 2025 and dipped to 43,100 in May 2026, leaving the latest reading 0.4% lower than August 2025.
Fish Tank Filters 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
78.2K
▼ 0.9% MoM
Monthly Revenue 2026/07
$1.2M
▼ 0.8% MoM
Top 10 Market Share 2026/07
46.0%
Fish Tank Filters Market Share & Sales Concentration on Amazon US — July 2026
The most-sold fish tank filters listing on Amazon US in July 2026 is ASIN B0006JM09E (Brand: Tetra), which sold 6,000 units at $6.47 apiece — equal to 7.7% 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 $445,090 in July 2026 — 46.0% of unit volume and 37.9% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Fish Tank Filters' on Amazon
July 2026
Is 46.0% 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 Filters Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Tetra is the best-performing fish tank filters brand in July 2026, moving 20,000 units across 5 ASINs for 55.6% of Top 10 volume. API follows with 5,000 units (13.9%), ahead of MarineLand on 3,000 units (8.3%).
With 6 brands splitting the Top 10 and 77.8% 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
5 ASINs in Top 10
55.6%
Units
20K
Revenue
$248.5K
Avg. price
$13.33
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·★4.7·13.3K 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 sold3K
API
1 ASIN in Top 10
13.9%
Units
5K
Revenue
$47.4K
Avg. price
$9.48
B000HHLQO0
$9.48·★4.6·20.2K 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 Filters 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 B0B9656RGN close behind at ▲ 50.0% MoM on 3K 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
13.3K
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
B0B9656RGN
HiTauing 8 Pack EF-S Filter Cartridges for EF-S Element and BF5 BETTAFLO
Unlock to view ASIN details and product titles
Price
$7.99
Rating
4.6
Reviews
1.2K
Latest month sales
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