Fish Tank
Fish Tank shows beatable incumbent ratings (3.9★), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Flapen Score
Is Fish Tank profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Fish Tank is a £487K/yr Amazon United Kingdom market (2.4M searches/yr). The top 5 brands hold 61% of demand. Verdict: Worth a look — 56/100.
Fish Tank: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved -20.0% over the last 90 days and 0.4% of searches end in a purchase.
£487K
revenue / yr
Who owns the niche?
The top 5 brands hold 61% of demand, so 39% of the market is open.
39%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 3.9★ — the gap to enter on.
0/100
page quality · 41 products
Top 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
Craftsboys 9L Fish Tank Nano Glass Aquarium Upgrade Filter system and LED Light for Freshwater & Marine Filter Balls Included (White 9L)
- Price
- £30.16
- Rating
- 3.3/5
- Reviews
- 336
- Age
- 2y ago
Diversa Aquarium Professional Fish Tank - Real Glass Standard Rectangle AQUARIUM ONLY - 25L (40x25x25cm)
- Price
- £26.63
- Rating
- 4.5/5
- Reviews
- 1,571
- Age
- 8y ago
YISITONG Fish Tank 3 Gallon Aquarium Starter Kit with Filter and LED Lighting (17 Color Choices) 360 View Aquarium for Small Fish Quiet Desktop Aquarium for Home Office Best Gifts
- Price
- £35.32
- Rating
- 4.1/5
- Reviews
- 49
- Age
- 9mo ago
LED Glass Aquarium Fish Tank Starter Kit With Fish Net Led Light and Air Pump Filter (26L)
- Price
- £41.27
- Rating
- 4.2/5
- Reviews
- 211
- Age
- 3y ago
Craftsboys 5.5L Fish Tank Starter Kits Nano Glass Aquarium with Filter Led Light for Aquascape DIY Small Betta Fish Tank
- Price
- £24.23
- Rating
- 3.6/5
- Reviews
- 548
- Age
- 2y ago
Trending
90-day click momentum
BREEZENEST Aquarium Kit Compact Betta Fish Tank Office Fish Tank Bedroom Aquarium Clear Viewing Tank Ecological Cycle System Aquarium Gift Set for Desktop Office or Home Décor Black
- Price
- £19.66
- Rating
- 3.4/5
- Reviews
- 4
- Age
- 3mo ago
Diversa Aquarium Professional Fish Tank - Real Glass Standard Rectangle AQUARIUM ONLY - 54L (60x30x30cm)
- Price
- £59.01
- Rating
- 4.5/5
- Reviews
- 1,571
- Age
- 2y ago
Small Glass Aquarium Tank 8L with Filter and Light All-in-One Desktop Glass Fish Tank Kit with Pump for Goldfish Betta Shrimp White
- Price
- £28.30
- Rating
- 3.4/5
- Reviews
- 22
- Age
- 11mo ago
YISITONG Fish Tank 3 Gallon Aquarium Starter Kit with Filter and LED Lighting (17 Color Choices) 360 View Aquarium for Small Fish Quiet Desktop Aquarium for Home Office Best Gifts
- Price
- £35.32
- Rating
- 4.1/5
- Reviews
- 49
- Age
- 9mo ago
Ferplast Plastic Container for Small Animals GEO EXTRA LARGE Aquarium Tank 11 L for Fishes Terrarium Turtles Insects Sturdy Plastic Ventilation Grills 35 6 x 23 4 x h 22 8 cm Red
- Price
- £16.01
- Rating
- 4.3/5
- Reviews
- 5,209
- Age
- 12y ago
Newest
by launch dateBREEZENEST Aquarium Kit Compact Betta Fish Tank Office Fish Tank Bedroom Aquarium Clear Viewing Tank Ecological Cycle System Aquarium Gift Set for Desktop Office or Home Décor Black
- Price
- £19.66
- Rating
- 3.4/5
- Reviews
- 4
- Age
- 3mo ago
YISITONG Fish Tank 3 Gallon Aquarium Starter Kit with Filter and LED Lighting (17 Color Choices) 360 View Aquarium for Small Fish Quiet Desktop Aquarium for Home Office Best Gifts
- Price
- £35.32
- Rating
- 4.1/5
- Reviews
- 49
- Age
- 9mo ago
Fluval Flex 2.0 Black Aquarium Kit 34 L
- Price
- £82.60
- Rating
- 4.4/5
- Reviews
- 35
- Age
- 10mo ago
Fluval Flex 2.0 Black Aquarium Kit 57 L
- Price
- £109.79
- Rating
- 4.6/5
- Reviews
- 52
- Age
- 10mo ago
Small Glass Aquarium Tank 8L with Filter and Light All-in-One Desktop Glass Fish Tank Kit with Pump for Goldfish Betta Shrimp White
- Price
- £28.30
- Rating
- 3.4/5
- Reviews
- 22
- Age
- 11mo ago
Competition: brands, sellers & click share
The top 5 products take 40% of clicks — established leaders, but buyers still shop beyond them.
Brands
21 falling
Sellers
33
Top-5 brand share
61%
Top 20: 99%
Top-5 click share
40%
Top 20: 77%
Open market
33%
- Craftsboys25%
- Swell UK11%
- Diversa11%
- Pets Instinct7%
- Fluval7%
- YISITONG6%
Fish Tank demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.3×
Top Fish Tank search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- fish tank1.2M/yr
- aquarium362K/yr
- small fish tank130K/yr
- fish tanks132K/yr
- tropical fish tank85K/yr
- betta fish tank54K/yr
- axolotl tank30K/yr
- large fish tank37K/yr
- fish tanks for sale42K/yr
- shrimp tank33K/yr
What reviews say buyers love and hate about Fish Tank
What buyers mention most, as a share of all reviews.
What buyers love
64% of reviews“Excellent value for money”
“Good Quality Tank”
“Filtration works perfectly”
“Not too small not too big”
“Design is cool”
What buyers complain about
74% of reviews“Poor filter”
“Too small”
“Leaking tank”
“its really poor quality”
“Broke”
Fish Tank return rate & reasons
Why buyers send it back, as a share of all return requests.
3.0%
Return rate
61%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common 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.
