90 day algaecide for pool
Worth a lookShows demand growing +275.0% this quarter, but a small market ($22K/yr) keeps it on the watch list.
Growth
Incredible+275.0%90-day search growth — must beat 0% to launch
Returns
Incredible0.2%return rate — above 5% kills the launch gate
Avg price
Incredible$41.52avg listing price — sweet spot $15–$100
Conversion
Great9.1%search→purchase rate — share of searches ending in a sale
Price range
Good$14.88–$131.71cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Review moat
Okay2,107.07avg incumbent reviews — the moat a new listing must climb
Competition
Bad74%top-5 click share — a locked-up shelf
Brand share
Bad93%top-5 brand share — brand-locked demand
Market size
Bad$22K$22K/yr · 6K searches
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.
Data updated Jul 24, 2026 · scored weekly · How we score niches
90 day algaecide for pool market data
- Units sold / yr
- 1K–1K
- avg 100–250/product
- Revenue / yr
- $42K–$52K
- units × avg price
- Conversion rate
- 9.1%
- Avg BSR
- #61
- Page quality
- 0%
- Prime
- 79%
- Sponsored
- 71%
- Out of stock
- 0.0%
- Avg brand age
- 137 months
- Avg seller age
- 163 days
Competition & brand 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%)
Demand & seasonality
Weekly Amazon search volume, last 94 weeks — +275.0% search growth over the last 90 days.Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 31.2×
Top 90 day algaecide for pool 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 14 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
SeaKlear 90-Day Algae Prevention & Remover 1 Qt
SeaKlear$25.324.4★4,082 rev
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
MAV AquaDoc$29.094.2★1,291 rev
SeaKlear 90-Day Algae Prevention & Remover (2 Quart)
SeaKlear$46.994.6★346 rev
SeaKlear 90 Day Algae Prevention and Remover 1-Gallon
SeaKlear$71.234.6★116 rev
Natural Chemistry Algae Break 90 32 Fl oz Single Pack
Natural Chemistry$27.624.5★204 rev
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
MAV AquaDoc$19.9286 rev
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
MAV AquaDoc$60.421,291 rev
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
FROG$36.82281 rev
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
MAV AquaDoc$29.091,291 rev
SeaKlear 2 Pack 90-Day Algae Prevention & Remover 1Gal
SeaKlear$131.7120 rev
Trending
90-day click momentumAquaDoc 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
MAV AquaDoc$19.924.2★
Halosource SeaKlear SKA-B-Q 90-Day Algae Prevention and Remover for Swimming Pools
SeaKlear$30.094.5★
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
In The Swim$20.664.6★
SeaKlear 90-Day Algae Prevention & Remover (2 Quart)
SeaKlear$46.994.6★
Natural Chemistry Algae Break 90 32 Fl oz Single Pack
Natural Chemistry$27.624.5★
What buyers say about 90 day algaecide for pool
What buyers praise and complain about, mined from review topics.What buyers love
“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”
“this restored my pool to blue and clear again”
“keeps the water looking clean”
“Also the blue color is super cool :”
“it was very durable”
“Cuts my maintenance time way down”
What buyers complain about
“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”
“Bottle cap not on properly, opened box and that blue liquid splashed all over”
“Don't keep clean”
“A waste of time and money”
“Stained my pool”
“it has no odor”
Top return reasons
Common questions
- Is 90 day algaecide for pool profitable to sell on Amazon United States?
- The niche generates $22K/yr across 14 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +275.0%. Flapen's verdict: Worth a look (55/100).
- How competitive is the 90 day algaecide for pool niche?
- 8 brands and 61 sellers compete. The top 5 products take 74% of clicks and top 5 brands hold 93% of demand.
- What do buyers complain about in 90 day algaecide for pool?
- Top complaints mined from reviews: Functionality-Overall, Value For Money, Quality-Overall. The return rate is 0.2%.
- When does demand for 90 day algaecide for pool peak?
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 31.2× the quietest.
- What does it cost to enter the 90 day algaecide for pool niche?
- Listings span $14.88–$131.71; the average listing price is $41.52 (sweet spot $15–$100). The average incumbent carries 2,107 reviews — the moat a new listing must climb.