Ph Minus
Ph Minus shows demand growing +703.8% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Flapen Score
Is Ph Minus profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Ph Minus is a £98K/yr Amazon United Kingdom market (51K searches/yr). The top 5 brands hold 77% of demand. Demand peaks in May–Jun–Jul. Verdict: Worth a look — 59/100.
Ph Minus: 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 +703.8% over the last 90 days and 17.5% of searches end in a purchase.
£98K
revenue / yr
Who owns the niche?
The top 5 brands hold 77% of demand, so 23% of the market is open.
23%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.6★ — the gap to enter on.
0/100
page quality · 18 products
Top Ph Minus 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
1.5 Kg pH Minus Reducer Granules for Hot Tubs and Paddling Pools
- Price
- £7.93
- Rating
- 4.6/5
- Reviews
- 223
- Age
- 5y ago
Clearwater pH Minus Decreaser 1.5 kg Granules for Spa Hot Tub & Swimming Pool Water Treatment Lowers pH & Improves Water Balance
- Price
- £10.29
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 1mo ago
7kg pH Minus - Bluewater Swimming Pool & Spa Chemicals - PoolShopUK
- Price
- £15.82
- Rating
- 4.7/5
- Reviews
- 398
- Age
- 9y ago
Bluewater 750g pH Minus - Swimming Pool & Spa Chemicals Above Ground Paddling Pool pH Balancer
- Price
- £7.45
- Rating
- 4.5/5
- Reviews
- 99
- Age
- 6y ago
Clearwater pH Plus Increaser - 1 kg Granules for Hot Tub Spa & Swimming Pool Water Treatment Boosts pH & Improves Water Balance
- Price
- £7.41
- Rating
- 4.6/5
- Reviews
- 7,880
- Age
- 18y ago
Trending
90-day click momentum
Safe Splash pH Minus 7kg Granules pH Reducer for Hot Tub & Swimming Pool Water pH Down for Spas Inflatable & Garden Pools Easy Dosing for Clear Comfortable Water
- Price
- £19.33
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 3mo ago
Clearwater pH Minus Decreaser 1.5 kg Granules for Spa Hot Tub & Swimming Pool Water Treatment Lowers pH & Improves Water Balance
- Price
- £10.29
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 1mo ago
pH/KH Reducer ARKA pH Decrease 118ml lowers pH & carbonate hardness safely freshwater water conditioner with electrolytes protects slime coat ideal for Discus Tetras & soft water aquariums
- Price
- £5.37
- Rating
- 4.3/5
- Reviews
- 496
- Age
- 13y ago
Clearwater TA Plus Alkalinity Increaser for Swimming Pool and Spa Treatment White 19.0 cm*9.7 cm*9.7 cm
- Price
- £9.08
- Rating
- 4.7/5
- Reviews
- 3,405
- Age
- 7y ago
Deep Blue PH Minus 1Kg pH decreaser
- Price
- £9.59
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 2y ago
Newest
by launch dateClearwater pH Minus Decreaser 1.5 kg Granules for Spa Hot Tub & Swimming Pool Water Treatment Lowers pH & Improves Water Balance
- Price
- £10.29
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 1mo ago
Safe Splash pH Minus 7kg Granules pH Reducer for Hot Tub & Swimming Pool Water pH Down for Spas Inflatable & Garden Pools Easy Dosing for Clear Comfortable Water
- Price
- £19.33
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 3mo ago
Clearwater pH Minus Decreaser 3 kg Granules for Hot Tub Spa & Swimming Pool Water Treatment Lowers pH & Improves Water Balance
- Price
- £16.62
- Rating
- 4.0/5
- Reviews
- 5
- Age
- 7mo ago
pH Down pH Minus Decreaser 1.5kg For Swimming Pools Hot Tubs & Spas pH Reducer Lowers pH Levels in Pools & Hot Tubs Total Alkalinity TA Control Decreases pH Levels No More Mr Nice Guy
- Price
- £11.32
- Rating
- 4.8/5
- Reviews
- 40
- Age
- 2y ago
Deep Blue PH Minus 1Kg pH decreaser
- Price
- £9.59
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 2y ago
Competition: brands, sellers & click share
The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.
Brands
11 rising
Sellers
25
Top-5 brand share
77%
Top 20: 100%
Top-5 click share
61%
Top 20: 100%
Open market
15%
- Clearwater28%
- SHATCHI22%
- Bluewater Pools & Spa Chemicals10%
- SUDS-ONLINE9%
- bluewater POOL & SPA CHEMICALS8%
- Zagosa8%
- Open — no brand owns it (5 brands, 15%)
Ph Minus demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: May, Jun, Jul · busiest ÷ quietest = 18.3×
Top Ph Minus search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- ph minus17K/yr
- ph minus swimming pool6K/yr
- ph minus hot tub8K/yr
- ph reducer for swimming pool5K/yr
- ph reducer4K/yr
- ph decreaser for pool3K/yr
- clearwater ph minus3K/yr
- ph reducer hot tub4K/yr
What reviews say buyers love and hate about Ph Minus
What buyers mention most, as a share of all reviews.
What buyers love
100% of reviews“Good value. Arrived quick good value for.”
“Works as it should”
“Great Product”
“Works well would recommend”
“Perfect for the hot tub”
What buyers complain about
100% of reviews“Doesnt work”
“Doesnt do what it says”
“Waste of money”
“Absolute waste of of money no chlorine in them did nothing for the water”
“Absolute waste of of money no chlorine in them did nothing for the water”
Ph Minus return rate & reasons
Why buyers send it back, as a share of all return requests.
0.2%
Return rate
44%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Ph Minus 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.
