Fish Tank Decor Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Fish Tank Decor sales on Amazon US totaled 88,800 units in July 2026 (▼ 1.0% vs. the prior month), generating an estimated $1,113,772 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 57.4% of unit volume and 62.6% of revenue, while a typical listing is priced at $12.10. The keyword itself pulled 45,284 Amazon queries over the same period (▲ 6.9% MoM).
Zooming out to the 12-month window ending July 2026, the fish tank decor Top 50 moved 870,950 units and $10,321,954 in cumulative sales — an average of 72,579 units and $860,163 per month. Monthly throughput topped out at 89,700 units in June 2026 and dipped to 53,250 in May 2026, leaving the latest reading 34.2% higher than August 2025.
Fish Tank Decor 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
88.8K
▼ 1.0% MoM
Monthly Revenue 2026/07
$1.1M
▲ 9.0% MoM
Top 10 Market Share 2026/07
57.4%
Fish Tank Decor Market Share & Sales Concentration on Amazon US — July 2026
The most-sold fish tank decor listing on Amazon US in July 2026 is ASIN B004LO9KSY (Brand: API), which sold 10,000 units at $8.48 apiece — equal to 11.3% of every unit tracked in this report and 43% ahead of the No. 2 listing.
The Top 10 ASINs account for 51,000 units and $697,500 in July 2026 — 57.4% of unit volume and 62.6% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Fish Tank Decor' on Amazon
July 2026
Is 57.4% Top 10 share highly concentrated?
Ask AI to evaluate competition, market structure, and entry opportunities using ’s tracked Amazon sales, ranking, and keyword data.
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Top 5 Volume Share breakdown
B004LO9KSY
API TAP WATER CONDITIONER Aquarium Water Conditioner 16-Ounce Bottle
10K
▲ 0.0%vs. prior month
$84.8K
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
B0BFVST4XX
PAIZOO Aquarium Thermometer Digital, Highly Accurate Fish Tank Thermometer | LED Display, 8000h Battery Life, Precise Temp Gauge, Range 0-140℉, Stick-on Fish Tank Thermometer for Betta, Axolotl & Turtle
6K
▲ 0.0%vs. prior month
$57.2K
latest month
12-month trend
B0FJG14PJR
FIVEIZERO 100PCS Luminous mini Resin Animals - 20 Styles Multiple Colors per Style Glow in The Dark Plastic Tiny Animals Figures for Dollhouse, Fairy Garden, Aquarium, Party Favors & DIY Craft Decor
6K
▲ 20.0%vs. prior month
$57.2K
latest month
12-month trend
B094QH3SRR
Aqua Natural Substrate, Sugar White Sand, 10lb | Aquascaping, Aquariums, Vivariums, Terrariums
5K
▲ 25.0%vs. prior month
$64.8K
latest month
12-month trend
B0GGTJCVR5
BITZEE Aquarium Interactive Fish Tank Toy & Digital Pet, Ages 5+ | Nurture 30 Virtual Fish, Reacts to Touch, Customize with LED Lights, Screen-Free Responsive Play, Birthday Gift for Kids
4K
▲ 900.0%vs. prior month
$160K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Fish Tank Decor Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
API is the best-performing fish tank decor brand in July 2026, moving 10,000 units across 1 ASIN for 19.6% of Top 10 volume. Fluval follows with 7,000 units (13.7%), ahead of PAIZOO on 6,000 units (11.8%).
Volume is spread across 10 brands, with the top three holding 45.1% between them. No single label controls the shelf, which usually leaves room for a well-differentiated listing to take share without outspending an incumbent. Average selling prices among the leaders run from $7.99 to $16.99, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
API
1 ASIN in Top 10
19.6%
Units
10K
Revenue
$84.8K
Avg. price
$8.48
B004LO9KSY
$8.48·★4.7·26.8K revsAPI TAP WATER CONDITIONER Aquarium Water Conditioner 16-Ounce Bottle
Units sold10K
Fluval
1 ASIN in Top 10
13.7%
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
PAIZOO
1 ASIN in Top 10
11.8%
Units
6K
Revenue
$57.2K
Avg. price
$7.99
B0BFVST4XX
$7.99·★4.4·6.2K revsPAIZOO Aquarium Thermometer Digital, Highly Accurate Fish Tank Thermometer | LED Display, 8000h Battery Life, Precise Temp Gauge, Range 0-140℉, Stick-on Fish Tank Thermometer for Betta, Axolotl & Turtle
Units sold6K
Trending Fish Tank Decor 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, 2 ASINs forced its way in: B0GGTJCVR5 booked 4K units at $39.99, with ▲ 900.0% MoM change. On the growth side, B0BGL9PB4F leads positive momentum with ▲ 125.0% MoM growth on 900 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.
B0GGTJCVR5
BITZEE Aquarium Interactive Fish Tank Toy & Digital Pet, Ages 5+ | Nurture 30 Virtual Fish, Reacts to Touch, Customize with LED Lights, Screen-Free Responsive Play, Birthday Gift for Kids
Price
$39.99
Rating
3.9
Reviews
166
Latest month sales
B08XYSWBBB
majoywoo Natural Driftwood for Aquarium Decor Fish Tank Decor Reptile Decor | Assorted Driftwood Branch 6-10" 3 Pcs, Natural Driftwood for Aquascaping and Reptile Decor
Price
$21.99
Rating
4.2
Reviews
2.8K
Latest month sales
B0BGL9PB4F
Jorewood Natural Aquarium Driftwood for Fish Tanks & Reptile Terrariums – Safe Fish Tank Decorations, Unique Twisted Branches 3-Piece 7-11 Inch Low Tannin, Easy to Sink
Unlock to view ASIN details and product titles
Price
$19.99
Rating
4.4
Reviews
469
Latest month sales
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