30 Gallon Fish Tank
prices mostly outside the sweet spot ($18.64–$2431.46) — 30 Gallon Fish Tank doesn't clear our bar today.
Flapen Score
Ranks 3,590 of 3,978 Pet Supplies niches · −14 vs the category median of 51
Is 30 Gallon Fish Tank profitable on Amazon?
According to Flapen's Amazon United States niche tracking, 30 Gallon Fish Tank is a $112K/yr Amazon United States market (124K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Jan–Dec. Verdict: Skip it — 37/100.
30 Gallon Fish Tank: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -4.6% over the last 90 days and 0.4% of searches end in a purchase.
$112K
revenue / yr
Who owns the niche?
The top 5 brands hold 83% of demand, so 17% of the market is open.
17%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.1★ — the gap to enter on.
0/100
page quality · 29 products
Top 30 Gallon Fish Tank 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
Tetra Aquarium 20 Gallon Complete Tropical Fish Tank Kit With LED Lighting And Decor For Freshwater Fish
- Price
- $123.28
- Rating
- 4.3/5
- Reviews
- 3,796
- Age
- 10y ago
Tetra ColorFusion Aquarium 20 Gallon Fish Tank Kit Includes LED Lighting and Decor
- Price
- $132.90
- Rating
- 4.3/5
- Reviews
- 3,796
- Age
- 10y ago
Coospider 20 Gallon Glass Fish Tank Aquarium Starter Kit Simple Self-Cleaning Aquarium with 3-Color LED Lights with Quiet Filter Pump with Temperature Monitoring for Fish Shrimp Kids Gift Ideas
- Price
- $185.20
- Rating
- 3.8/5
- Reviews
- 196
- Age
- 6mo ago
Aqueon Aquarium Starter Kit with Smart Clean Filtration and LED Lighting Freshwater and Saltwater Fish 20-Gallon
- Price
- $179.13
- Rating
- 4.3/5
- Reviews
- 2,482
- Age
- 1y ago
Tetra Glass Aquarium 29 Gallons Rectangular Fish Tank
- Price
- $131.16
- Rating
- 4.6/5
- Reviews
- 998
- Age
- 6y ago
Trending
90-day click momentumCoospider 20 Gallon Glass Fish Tank Aquarium Starter Kit Simple Self-Cleaning Aquarium with 3-Color LED Lights with Quiet Filter Pump with Temperature Monitoring for Fish Shrimp Kids Gift Ideas
- Price
- $185.20
- Rating
- 3.8/5
- Reviews
- 196
- Age
- 6mo ago
Aqueon Glass 20 Gallon Long Tank for Aquariums & Terrariums
- Price
- $87.32
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 1mo ago
Aqueon Standard Glass Rectangle Aquarium Tank 20 Gallon High Fish Tank High-Clarity Glass Construction Freshwater & Saltwater Compatible Black Trim 25 x 13.25 x 17.25
- Price
- $95.09
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 2mo ago
20 Gallon Fish Tank Smart Aquarium Kit Glass Small Aquarium Starter Kits Self Cleaning with 3 Types of LED Lights and Filter Water Pump Water Temperature Detection Ultra Quiet Gift for Kid
- Price
- $197.13
- Rating
- 1.0/5
- Reviews
- 1
- Age
- 3mo ago
Tetra Aquarium 20 Gallon Complete Tropical Fish Tank Kit with LED Lighting for Freshwater Fish
- Price
- $163.11
- Rating
- 3.7/5
- Reviews
- 19
- Age
- 3y ago
Newest
by launch dateAqueon Glass 20 Gallon Long Tank for Aquariums & Terrariums
- Price
- $87.32
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 1mo ago
Aqueon Standard Glass Rectangle Aquarium Tank 20 Gallon High Fish Tank High-Clarity Glass Construction Freshwater & Saltwater Compatible Black Trim 25 x 13.25 x 17.25
- Price
- $95.09
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 2mo ago
20 Gallon Fish Tank Smart Aquarium Kit Glass Small Aquarium Starter Kits Self Cleaning with 3 Types of LED Lights and Filter Water Pump Water Temperature Detection Ultra Quiet Gift for Kid
- Price
- $197.13
- Rating
- 1.0/5
- Reviews
- 1
- Age
- 3mo ago
20 Gallon Glass Fish Tank Standard Aquarium Fish Tank Rimless Low Iron Aquarium for Betta/Turtle/Goldfish/Snails/Shrimp and Aquatic Planting
- Price
- $197.80
- Rating
- 5.0/5
- Reviews
- 8
- Age
- 5mo ago
Coospider 20 Gallon Glass Fish Tank Aquarium Starter Kit Simple Self-Cleaning Aquarium with 3-Color LED Lights with Quiet Filter Pump with Temperature Monitoring for Fish Shrimp Kids Gift Ideas
- Price
- $185.20
- Rating
- 3.8/5
- Reviews
- 196
- Age
- 6mo ago
Competition: brands, sellers & click share
The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.
Brands
17 flat
Sellers
23
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
52%
Top 20: 91%
Open market
15%
- Tetra40%
- Aqueon19%
- COOSPIDER10%
- GloFish7%
- SubstrateSource7%
- CLBA3%
- Open — no brand owns it (11 brands, 15%)
30 Gallon Fish Tank demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Jan, Dec · busiest ÷ quietest = 2.2×
Top 30 Gallon Fish Tank search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- 20 gallon aquarium63K/yr
- aquarium 20 gallon11K/yr
- 20 gallon aquarium kit12K/yr
- fish tank 20+ gallon9K/yr
- 20 gallon tall fish tank6K/yr
- huge fish tank4K/yr
- 10 gallon acrylic aquarium4K/yr
- aquariums 20 gallon5K/yr
- aquarium large3K/yr
- aquarium tank 20 gallon2K/yr
What reviews say buyers love and hate about 30 Gallon Fish Tank
What buyers mention most, as a share of all reviews.
What buyers love
68% of reviews“High quality tank”
“Great Value”
“the filter works really well”
“Great size”
“The look is superb”
What buyers complain about
65% of reviews“Not a great filter”
“It simply broke”
“Leaks”
“poor instructions”
“Horrible quality”
30 Gallon Fish Tank return rate & reasons
Why buyers send it back, as a share of all return requests.
5.1%
Return rate
54%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common 30 Gallon Fish Tank questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
