api freshwater master test kit
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.5%return rate — above 5% kills the launch gate
Conversion
Great9.8%search→purchase rate — share of searches ending in a sale
Avg price
Great£18.39avg listing price — sweet spot $15–$100
Price range
Good£7.51–£28.78cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad11,688.6avg incumbent reviews — the moat a new listing must climb
Market size
Bad£71K£71K/yr · 39K searches
Growth
Bad-25.1%90-day search growth — must beat 0% to launch
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, api freshwater master test kit is a £71K/yr Amazon United Kingdom market (39K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Feb. Verdict: Skip it — 34/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
api freshwater master test kit market data
- Units sold / yr
- 3K–4K
- avg 500–750/product
- Revenue / yr
- £55K–£74K
- units × avg price
- Conversion rate
- 9.8%
- Avg BSR
- #51
- Page quality
- 0%
- Prime
- 80%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 44 months
- Avg seller age
- 186 days
Competition & brand share
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.Brands
3 flat
Sellers
36
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
100%
Top 20: 100%
Open market
0%
- API90%
- EASYTEST6%
- NT Labs4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -25.1% search growth over the last 90 days.Peak months: Feb · busiest ÷ quietest = 1.8×
Top api freshwater master test kit search terms
- api freshwater master test kit15K/yr
- api test kit19K/yr
- api master test kit5K/yr
Top api freshwater master test kit 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 5 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
API 800 Test Freshwater Aquarium Water Master Test Kit
API£24.234.7★39,499 rev
API Aquarium Test Strips & Water Treatment Bundle Aqua Essential + Test Kit
API£28.780.0★0 rev
API 5-in-1 Test Strips for Freshwater and Saltwater Aquariums 25-Count Box
API£7.514.5★12,323 rev
EASYTEST 6 in 1 Aquarium Test Strips 150 Strip Pack Aquarium Water Test Kit for Freshwater Fish Tank Fish Pond Accurate Testing Total Hardness Carbonate Nitrate Nitrite Cl2 pH
EASYTEST£9.484.5★4,669 rev
NT Labs Aquarium Lab Multi Test Kit (Up to 200 Tests)
NT Labs£21.944.6★1,952 rev
Newest
by launch dateAPI Aquarium Test Strips & Water Treatment Bundle Aqua Essential + Test Kit
API£28.780 rev
EASYTEST 6 in 1 Aquarium Test Strips 150 Strip Pack Aquarium Water Test Kit for Freshwater Fish Tank Fish Pond Accurate Testing Total Hardness Carbonate Nitrate Nitrite Cl2 pH
EASYTEST£9.484,669 rev
NT Labs Aquarium Lab Multi Test Kit (Up to 200 Tests)
NT Labs£21.941,952 rev
API 800 Test Freshwater Aquarium Water Master Test Kit
API£24.2339,499 rev
API 5-in-1 Test Strips for Freshwater and Saltwater Aquariums 25-Count Box
API£7.5112,323 rev
Trending
90-day click momentumAPI Aquarium Test Strips & Water Treatment Bundle Aqua Essential + Test Kit
API£28.780.0★
EASYTEST 6 in 1 Aquarium Test Strips 150 Strip Pack Aquarium Water Test Kit for Freshwater Fish Tank Fish Pond Accurate Testing Total Hardness Carbonate Nitrate Nitrite Cl2 pH
EASYTEST£9.484.5★
API 5-in-1 Test Strips for Freshwater and Saltwater Aquariums 25-Count Box
API£7.514.5★
API 800 Test Freshwater Aquarium Water Master Test Kit
API£24.234.7★
NT Labs Aquarium Lab Multi Test Kit (Up to 200 Tests)
NT Labs£21.944.6★
What buyers say about api freshwater master test kit
What buyers praise and complain about, mined from review topics.What buyers love
“easy to read”
“Does what it says”
“Good price”
“Great product and quality”
“Easy to use and clear instructions”
“will also last you MUCH much longer”
“Great kit for water testing”
“Great aquarium water test kit”
“The API Freshwater Master Kit solves that problem completely”
What buyers complain about
“Does not work”
“The test strips dont come close to the results you can get from liquid tests”
“Some of the colours are very close to one another though so trying to determine the difference between good”
“We paid for this pack which was £3 more expensive expecting it to be next day”
“So word of warning always check for new instructions regardless of however long you have been using a product”
“Not as good as the tetra ones”
“bad isn't always that easy”
Top return reasons
Common questions
- Is api freshwater master test kit profitable to sell on Amazon United Kingdom?
- The niche generates £71K/yr across 5 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -25.1%. Flapen's verdict: Skip it (34/100).
- How competitive is the api freshwater master test kit niche?
- 3 brands and 36 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in api freshwater master test kit?
- Top complaints mined from reviews: Functionality-Overall, Contamination, Color. The return rate is 0.5%.
- When does demand for api freshwater master test kit peak?
- Demand peaks in Feb; the busiest month runs 1.8× the quietest.
- What does it cost to enter the api freshwater master test kit niche?
- Listings span £7.51–£28.78; the average listing price is £18.39 (sweet spot $15–$100). The average incumbent carries 11,689 reviews — the moat a new listing must climb.