90 Day Algaecide for Pool
90 Day Algaecide for Pool shows demand growing +275.0% this quarter, but a small market ($22K/yr) keeps it on the watch list.
Flapen Score
Ranks 4,476 of 8,839 Patio, Lawn & Garden niches · −1 vs the category median of 56
Is 90 Day Algaecide for Pool profitable on Amazon?
According to Flapen's Amazon United States niche tracking, 90 Day Algaecide for Pool is a $22K/yr Amazon United States market (6K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 55/100.
90 Day Algaecide for Pool: 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 +275.0% over the last 90 days and 9.1% of searches end in a purchase.
$22K
revenue / yr
Who owns the niche?
The top 5 brands hold 93% of demand, so 7% of the market is open.
7%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.4★ — the gap to enter on.
0/100
page quality · 14 products
Top 90 Day Algaecide for Pool 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
SeaKlear 90-Day Algae Prevention & Remover 1 Qt
- Price
- $25.32
- Rating
- 4.4/5
- Reviews
- 4,082
- Age
- 16y ago

AquaDoc Copper Pool Algaecide for Swimming Pools - 32 oz - 90 Day Algaecide for Inground & Above Ground Pools - Non-Foaming Non-Staining Formula Reduces Chlorine Demand
- Price
- $29.09
- Rating
- 4.2/5
- Reviews
- 1,291
- Age
- 2y ago

SeaKlear 90-Day Algae Prevention & Remover (2 Quart)
- Price
- $46.99
- Rating
- 4.6/5
- Reviews
- 346
- Age
- 9y ago

SeaKlear 90 Day Algae Prevention and Remover 1-Gallon
- Price
- $71.23
- Rating
- 4.6/5
- Reviews
- 116
- Age
- 13y ago

Natural Chemistry Algae Break 90 32 Fl oz Single Pack
- Price
- $27.62
- Rating
- 4.5/5
- Reviews
- 204
- Age
- 12y ago
Trending
90-day click momentum
AquaDoc Liquid Algaecide for Swimming Pools - 32 oz - Treats Up to 2 500 Gallons - Non-Foaming Copper-Free Formula for Pool Algae Control with Built-in Clarifier - Made in USA
- Price
- $19.92
- Rating
- 4.2/5
- Reviews
- 86
- Age
- 2mo ago

Halosource SeaKlear SKA-B-Q 90-Day Algae Prevention and Remover for Swimming Pools
- Price
- $30.09
- Rating
- 4.5/5
- Reviews
- 69
- Age
- 14y ago

In The Swim Super Algaecide for Above Ground or Inground Swimming Pools Low Odor Non-Foaming Preventative for Yellow/Mustard Algae in Swimming Pools - 7.1% Chelated Copper 1 Quart
- Price
- $20.66
- Rating
- 4.6/5
- Reviews
- 5,783
- Age
- 15y ago

SeaKlear 90-Day Algae Prevention & Remover (2 Quart)
- Price
- $46.99
- Rating
- 4.6/5
- Reviews
- 346
- Age
- 9y ago

Natural Chemistry Algae Break 90 32 Fl oz Single Pack
- Price
- $27.62
- Rating
- 4.5/5
- Reviews
- 204
- Age
- 12y ago
Newest
by launch date
AquaDoc Liquid Algaecide for Swimming Pools - 32 oz - Treats Up to 2 500 Gallons - Non-Foaming Copper-Free Formula for Pool Algae Control with Built-in Clarifier - Made in USA
- Price
- $19.92
- Rating
- 4.2/5
- Reviews
- 86
- Age
- 2mo ago

AquaDoc Copper Pool Algaecide for Swimming Pools - 64 oz - 90 Day Algaecide for Inground & Above Ground Pools - Non-Foaming Non-Staining Formula Reduces Chlorine Demand
- Price
- $60.42
- Rating
- 4.2/5
- Reviews
- 1,291
- Age
- 1y ago

FROG 90-Day Algae Barrier - Dry Formula Algaecide Prevents Black Green and Yellow Algae for Pools up to 20 000 Gallons - Pool Maintenance & Algae Prevention - 2 Pods
- Price
- $36.82
- Rating
- 4.1/5
- Reviews
- 281
- Age
- 1y ago

AquaDoc Copper Pool Algaecide for Swimming Pools - 32 oz - 90 Day Algaecide for Inground & Above Ground Pools - Non-Foaming Non-Staining Formula Reduces Chlorine Demand
- Price
- $29.09
- Rating
- 4.2/5
- Reviews
- 1,291
- Age
- 2y ago

SeaKlear 2 Pack 90-Day Algae Prevention & Remover 1Gal
- Price
- $131.71
- Rating
- 4.7/5
- Reviews
- 20
- Age
- 7y ago
Competition: brands, sellers & click share
The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.
Brands
8 rising
Sellers
61
Top-5 brand share
93%
Top 20: 100%
Top-5 click share
74%
Top 20: 100%
Open market
4%
- SeaKlear54%
- MAV AquaDoc18%
- Natural Chemistry10%
- In The Swim5%
- Lo-Chlor5%
- CLOROX Pool&Spa3%
- Open — no brand owns it (2 brands, 4%)
90 Day Algaecide for Pool demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 31.2×
What reviews say buyers love and hate about 90 Day Algaecide for Pool
What buyers mention most, as a share of all reviews.
What buyers love
89% of reviews“The product is a good algaecide”
“Performed as advertised”
“Worth it”
“Help keep the pool clean works well I do buy it often”
“Easy to use”
What buyers complain about
89% of reviews“Stopped working”
“I thought it was expensive”
“actually cheaper cuz of quality”
“Product Description Deceiving”
“Did not know this product has a blue tint to it”
90 Day Algaecide for Pool return rate & reasons
Why buyers send it back, as a share of all return requests.
0.2%
Return rate
17%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common 90 Day Algaecide for Pool questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









