fish tank pump
Worth a lookShows beatable incumbent ratings (4.1★), but a small market ($64K/yr) keeps it on the watch list.
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Brand share
Great56%top-5 brand share — no brand owns this niche
Competition
Great38%top-5 click share — an open shelf
Returns
Good2.1%return rate — above 5% kills the launch gate
Price range
Good£5.61–£27.32cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Good£12.45avg listing price — sweet spot $15–$100
Conversion
Good4.4%search→purchase rate — share of searches ending in a sale
Review moat
Good1,383.21avg incumbent reviews — the moat a new listing must climb
Growth
Bad-10.0%90-day search growth — must beat 0% to launch
Market size
Bad£64K£64K/yr · 118K searches
According to Flapen's Amazon United Kingdom niche tracking, fish tank pump is a £64K/yr Amazon United Kingdom market (118K searches/yr). The top 5 brands hold 56% of demand. Verdict: Worth a look — 54/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
fish tank pump market data
- Units sold / yr
- 4K–5K
- avg 0–100/product
- Revenue / yr
- £50K–£62K
- units × avg price
- Conversion rate
- 4.4%
- Avg BSR
- #23
- Page quality
- 0%
- Prime
- 93%
- Sponsored
- 88%
- Out of stock
- 3.3%
- Avg brand age
- 42 months
- Avg seller age
- 188 days
Competition & brand share
Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.Brands
25 falling
Sellers
38
Top-5 brand share
56%
Top 20: 97%
Top-5 click share
38%
Top 20: 80%
Open market
38%
- NICREW18%
- Dtopsun11%
- HITOP10%
- Knifel8%
- flintronic8%
- Craftsboys6%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -10.0% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top fish tank pump search terms
- fish tank pump50K/yr
- aquarium pump33K/yr
- fish pump11K/yr
- fish tank water pump6K/yr
- pump for fish tank6K/yr
- small aquarium pump4K/yr
- small fish tank pump4K/yr
- fish pumps for tanks4K/yr
Top fish tank pump products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
NICREW Fish Tank Filter Internal Aquarium Filter for Small Tank Coldwater or Tropical Aquariums Up to 20L Black
NICREW£11.154.3★2,242 rev
Mini Submersible Water Pump (600L/H 10W) Adjustable Ultra Quiet Fountain Water Pump for Aquarium Fish Tank Pond Statuary Hydroponics Indoor or Outdoor Fountain with 1.5M Power Cord and 2 Nozzles
Dtopsun£8.714.2★1,264 rev
HITOP Single Outlet Aquarium Air Pump with Accessories Whisper Aerator Silent Oxygen Pump for Fish Tank 1L to 100 Litres
HITOP£8.334.3★1,078 rev
Knifel Submersible Pump 1500L/H 25W for Fountains and Aquariums
Knifel£16.734.2★1,771 rev
Craftsboys Fish Tank Filter Silent Internal Aquarium Filter Clean Water Air Pump Make Waves (4W-450L/H Black)
Craftsboys£8.203.9★879 rev
Newest
by launch date
Pawfly 3 W Small Fish Tank Filter 300 L Aquarium Filter Internal Submersible Aquarium Filter with Foam & Adjustable Water Pump Quiet Filter for 30-80 L Fish Tanks
Pawfly£9.7843 rev
QZQ Air Pump Aquarium Fish Tank Air Pump Silent with Single Outlet Included Accessories Suitable Fish Tank from 1L to 100 Liters2W
QZQ£7.61163 rev
HITOP 2W Nano Single Outlet Aquarium Air Pump 2.8L/M Quiet Fish Tank Aerator with Accessories Adjustable Oxygen Pump for 1-150L Small Fish Tanks
HITOP£10.80157 rev
Submersible Aquarium Powerhead Pump for Fish Tank Trickle Filter with Venturi Suitable for Marine & Freshwater Tropical Aquariums (800 l/h)
Finest-Filters£8.1818 rev
Pawfly Fish Tank Filter Internal Aquarium Filter with 300 L/H Submersible Quiet Water Pump and Sponge for 40 to 75 L Fish Tanks Small Multifunctional Filter for Filtration Circulation and Oxygenation
Pawfly£11.70305 rev
Trending
90-day click momentumSubmersible Aquarium Powerhead Pump for Fish Tank Trickle Filter with Venturi Suitable for Marine & Freshwater Tropical Aquariums (800 l/h)
Finest-Filters£8.184.1★
Pawfly 3 W Small Fish Tank Filter 300 L Aquarium Filter Internal Submersible Aquarium Filter with Foam & Adjustable Water Pump Quiet Filter for 30-80 L Fish Tanks
Pawfly£9.783.5★
Knifel Submersible Pump 3000L/H 60W for Fountains and Aquariums
Knifel£23.104.1★
Interpet Internal Aquarium Fish Tank PF1 Power Filter Cleans Water for Coldwater & Tropical Aquariums Up to 68 Litre black/blue
Interpet£13.164.2★
Mini Submersible Water Pump (600L/H 10W) Adjustable Ultra Quiet Fountain Water Pump for Aquarium Fish Tank Pond Statuary Hydroponics Indoor or Outdoor Fountain with 1.5M Power Cord and 2 Nozzles
Dtopsun£8.714.2★
What buyers say about fish tank pump
What buyers praise and complain about, mined from review topics.What buyers love
“reasonable price”
“Excellent product”
“Great water filter”
“As advertised”
“Fairly quiet too”
“Sturdy little pump”
“Good water flow”
“easy to clean the 2 sponges”
“Easy to fit”
“it did a surprisingly good job for such a compact pump”
What buyers complain about
“Didnt last”
“Very noisy”
“the size is a bit loose”
“Worst filter I have ever seen”
“This pump has quality issues”
“Doesn't work”
“just not that strong”
“Not worth price paid”
“.False advertisement”
“Pump stopped working and over heated”
Top return reasons
Common questions
- Is fish tank pump profitable to sell on Amazon United Kingdom?
- The niche generates £64K/yr across 43 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -10.0%. Flapen's verdict: Worth a look (54/100).
- How competitive is the fish tank pump niche?
- 25 brands and 38 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 56% of demand.
- What do buyers complain about in fish tank pump?
- Top complaints mined from reviews: Durability, Noise Level, Size-Overall. The return rate is 2.1%.
- When does demand for fish tank pump peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the fish tank pump niche?
- Listings span £5.61–£27.32; the average listing price is £12.45 (sweet spot $15–$100). The average incumbent carries 1,383 reviews — the moat a new listing must climb.