Betta Fish Tank Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Betta Fish Tank sales on Amazon US totaled 54,200 units in July 2026 (▼ 0.6% vs. the prior month), generating an estimated $985,217 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 79.3% of unit volume and 54.9% of revenue, while a typical listing is priced at $41.49. The keyword itself pulled 27,759 Amazon queries over the same period (▲ 9.4% MoM).
Zooming out to the 12-month window ending July 2026, the betta fish tank Top 50 moved 544,700 units and $10,580,133 in cumulative sales — an average of 45,392 units and $881,678 per month. Monthly throughput topped out at 54,550 units in June 2026 and dipped to 32,550 in May 2026, leaving the latest reading 34.8% higher than August 2025.
Betta Fish Tank 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
54.2K
▼ 0.6% MoM
Monthly Revenue 2026/07
$985.2K
▼ 1.6% MoM
Top 10 Market Share 2026/07
79.3%
Betta Fish Tank Market Share & Sales Concentration on Amazon US — July 2026
The most-sold betta fish tank listing on Amazon US in July 2026 is ASIN B00025694O (Brand: Seachem), which sold 9,000 units at $16.62 apiece — equal to 16.6% of every unit tracked in this report and 13% ahead of the No. 2 listing.
The Top 10 ASINs account for 43,000 units and $541,120 in July 2026 — 79.3% of unit volume and 54.9% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Betta Fish Tank' on Amazon
July 2026









Is 79.3% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown

B00025694O
Seachem Prime -500 ml/ 17 fl. oz. | Chemical Remover and Detoxifier
9K
▲ 0.0%vs. prior month
$149.6K
latest month
12-month trend

B091D3DTWS
Tetra Water Cleaner Gravel Siphon for Aquariums Up to 55 Gal | Makes Water Changes Easier, Removes Debris From Gravel, Remove 30% Of Water Every 30 Days
8K
▲ 0.0%vs. prior month
$82.3K
latest month
12-month trend

B00JMABYUO
Fluval 12694 Plant and Shrimp Stratum for Freshwater Fish Tanks, 8.8 lbs. | Aquarium Substrate for Strong Plant Growth, Supports Neutral to Slightly Acidic pH
7K
▼ 12.5%vs. prior month
$127.9K
latest month
12-month trend

B005D4NZJG
TetraBetta PLUS Floating Mini Pellets, Fish Food With Natural Color Enhancer, 1.2 ounces
5K
▲ 0.0%vs. prior month
$15K
latest month
12-month trend

B0B8ZJ2JXZ
Ameliade Aquarium Artificial Plants & Rock Cave Betta Fish Tank Decor Set | Betta Goldfish Aquarium Accessories, Soft Plastic Plants & Rock Cave Decorations, Small and Large Fish Bowl Ornaments
3K
▲ 0.0%vs. prior month
$24.1K
latest month
12-month trend

B0BGG7Z3N9
hygger Small Aquarium Betta Heater, Submersible Fish Tank Heater 10W/25W/50W/100W with LED Digital Display, Suitable for Marine Saltwater and Freshwater up to 5/10/16/26 Gallon
3K
▲ 50.0%vs. prior month
$49.6K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Betta Fish Tank Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Tetra is the best-performing betta fish tank brand in July 2026, moving 16,000 units across 3 ASINs for 37.2% of Top 10 volume. Seachem follows with 9,000 units (20.9%), ahead of Fluval on 7,000 units (16.3%).
With 8 brands splitting the Top 10 and 74.4% 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 $10.00 to $16.99, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Tetra
3 ASINs in Top 10
37.2%
Units
16K
Revenue
$145.2K
Avg. price
$10.00

B091D3DTWS
$10.29·★4.5·5.2K revsTetra Water Cleaner Gravel Siphon for Aquariums Up to 55 Gal | Makes Water Changes Easier, Removes Debris From Gravel, Remove 30% Of Water Every 30 Days
Units sold8K
B005D4NZJG
$3.74·★4.6·4.3K revsTetraBetta PLUS Floating Mini Pellets, Fish Food With Natural Color Enhancer, 1.2 ounces
Units sold5K
B0002DHYF4
$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 sold3K
Seachem
1 ASIN in Top 10
20.9%
Units
9K
Revenue
$149.6K
Avg. price
$16.62

B00025694O
$16.62·★4.8·43.3K revsSeachem Prime -500 ml/ 17 fl. oz. | Chemical Remover and Detoxifier
Units sold9K
Fluval
1 ASIN in Top 10
16.3%
Units
7K
Revenue
$127.9K
Avg. price
$16.99

B00JMABYUO
$16.99·★4.7·18.2K revsFluval 12694 Plant and Shrimp Stratum for Freshwater Fish Tanks, 8.8 lbs. | Aquarium Substrate for Strong Plant Growth, Supports Neutral to Slightly Acidic pH
Units sold7K
Trending Betta Fish Tank 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: B0F17J6B2M booked 1K units at $23.88, with ▲ 0.0% MoM change. On the growth side, B001LUNAYG leads positive momentum with ▲ 100.0% MoM growth on 2K units, with B08LKC4NLB close behind at ▲ 100.0% MoM on 200 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.

B0F17J6B2M
AQUANEAT Fish Tank, 1 Gallon Betta Fish Tank, Small Aquarium Kit with LED Light and Water Filter Pump
Price
$23.88
Rating
3.4
Reviews
285
Latest month sales

B001LUNAYG
API BETTA WATER CONDITIONER Betta Fish Freshwater Aquarium Water Conditioner 1.7-Ounce Bottle
Price
$4.08
Rating
4.7
Reviews
3.5K
Latest month sales

B08LKC4NLB
Aqueon MiniBow Small Aquarium Starter Kit, All-in-One Desktop Fish Tank for Betta, Shrimp or Small Fish, Includes SmartClean Filter Technology, LED Light and Conditioner, Black, 5 Gallon
Unlock to view ASIN details and product titles
Price
$72.95
Rating
4.1
Reviews
5.6K
Latest month sales
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