Is fountain algaecide and clarifier profitable to sell on Amazon United States?

The niche generates $736K/yr across 15 tracked products. 90-day search growth is +251.6%. Flapen's verdict: Worth a look (69/100).

How competitive is the fountain algaecide and clarifier niche?

9 brands and 63 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 87% of demand.

What do buyers complain about in fountain algaecide and clarifier?

Top complaints mined from reviews: Functionality-Overall, Value For Money, Advertised Vs Actual Product. The return rate is 0.6%.

When does demand for fountain algaecide and clarifier peak?

Demand peaks in May–Jun–Jul–Aug; the busiest month runs 9.7× the quietest.

What does it cost to enter the fountain algaecide and clarifier niche?

Listings span $10.22–$63.54; the average listing price is $22.99 (sweet spot $15–$100). The average incumbent carries 4,891 reviews — the moat a new listing must climb.

fountain algaecide and clarifier

Worth a look

Shows demand growing +251.6% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Growth

Incredible+251.6%

90-day search growth — must beat 0% to launch

Conversion

Incredible18.0%

search→purchase rate — share of searches ending in a sale

Returns

Incredible0.6%

return rate — above 5% kills the launch gate

Avg price

Incredible$22.99

avg listing price — sweet spot $15–$100

Price range

Great$10.22–$63.54

cheapest to priciest tracked listing — scored on the share inside $15–$100

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Market size

Good$736K

$736K/yr · 178K searches

Brand share

Okay87%

top-5 brand share — brands hold most of the demand

Review moat

Bad4,891.13

avg incumbent reviews — the moat a new listing must climb

Competition

Bad72%

top-5 click share — a locked-up shelf

Signals Trending

According to Flapen's Amazon United States niche tracking, fountain algaecide and clarifier is a $736K/yr Amazon United States market (178K searches/yr). The top 5 brands hold 87% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Worth a look — 69/100.

Data updated Jul 16, 2026 · scored weekly · How we score niches

fountain algaecide and clarifier market data

Units sold / yr: 30K–40K; avg 1,500–2,000/product
Revenue / yr: $690K–$920K; units × avg price
Conversion rate: 18.0%
Avg BSR: #65
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 74 months
Avg seller age: 169 days

Competition & brand share

The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

Top-5 brand share

87%

Top 20: 100%

Top-5 click share

72%

Top 20: 100%

Open market

10%

Sanco Industries40%
EasyCare24%
ADIOS!10%
PondBliss8%
MICROBE-LIFT4%
API4%
Open — no brand owns it (3 brands, 10%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +251.6% search growth over the last 90 days.

Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 9.7×

Open Trend

Top fountain algaecide and clarifier search terms

fountain algaecide and clarifier38K/yr +470.2%17.7% conv.
fountain cleaner27K/yr +193.1%11.7% conv.
algaecide for fountain21K/yr +289.8%14.6% conv.
fountec algaecide and clarifier8K/yr +239.2%29.7% conv.
bird safe algaecide for fountains8K/yr +369.6%9.6% conv.
water fountain cleaner9K/yr +149.1%8.1% conv.
fountain algae control8K/yr +165.1%14.1% conv.
fountain cleaner safe for birds8K/yr +131.9%11.3% conv.
fountain water treatment7K/yr +134.4%11.9% conv.
fountec7K/yr +176.8%21.0% conv.

All search terms

Top fountain algaecide and clarifier 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 15 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Fountain Algaecide and Clarifier - 8oz - Kills and Inhibits All Types of Algae Growth Formulated for Small Ponds and Water Features Treats up to 8 000 Gallons

Sanco Industries$16.524.4★4,729 rev

EasyCare FounTec Algaecide and Clarifier 8 oz. Bottle

EasyCare$18.734.5★12,699 rev

Adios! Fountain Cleaner and Clarifier for Outdoor and Indoor Fountains Safe for Plastic Metal Glass and Stone (16oz)

ADIOS!$18.794.2★703 rev

Algaecide for Fountains Clarify and Controls Algae for Large and Small Fountain (8 oz)

PondBliss$16.914.4★410 rev

Bird Bath & Fountain Maintenance - (8 Ounces) - Fast-Acting Enzyme-Based Formula Will Extend The Life of Your Water Feature Aid in Maintaining a Balanced Ecosystem - Safe for All Birds & Animals

Sanco Industries$10.224.3★12,252 rev

Newest

by launch date

ActiClear Muck Clear Natural Pond Sludge Treatment 500 Tablets for Ponds Fountains & Bird Baths Beneficial Bacteria & Enzymes Chemical-Free & Safe for Fish Pets & Wildlife

ACTICLEAR$21.95635 rev

1y ago

Algaecide for Fountains Clarify and Controls Algae for Large and Small Fountain (8 oz)

PondBliss$16.91410 rev

2y ago

Adios! Fountain Cleaner and Clarifier for Outdoor and Indoor Fountains Safe for Plastic Metal Glass and Stone (16oz)

ADIOS!$18.79703 rev

3y ago

ADIOS! Fountain Cleaner and Clarifier for Outdoor and Indoor Fountains Safe for Plastic Metal Glass and Stone (8oz)

ADIOS!$13.91703 rev

3y ago

The Pond Guy InstaFix Algae Control Outdoor Water Garden Fountain & Birdbath Algae Solution EPA Registered Liquid Algaecide Control Green Water & String Algae Bird Fish & Pet Safe 16 Ounce

The Pond Guy$12.98528 rev

7y ago

What buyers say about fountain algaecide and clarifier

What buyers praise and complain about, mined from review topics.

What buyers love

Ease Of Cleaning19%

“easier to clean”

Quality-Overall18%

“Fair product”

Advertised Vs Actual Product15%

“Worked as advertised”

Water Resistance10%

“This is absolutely perfect for water features”

Ease Of Use7%

“Easy to use”

Value For Money5%

“Best Value”

Safety Standards4%

“Pet safety”

Pureness3%

“the fountain has remained crystal clear”

Plant Growth2%

“Works great to control algae in plant saucers”

Eco Friendliness2%

“safe for the environment”

What buyers complain about

Functionality-Overall40%

“Not effective”

Value For Money9%

“Don't go the inexpensive way”

Advertised Vs Actual Product9%

“The ad is false”

Leak-Proof5%

“the bottle leaked when I received”

Ease Of Cleaning5%

“Didn't keep clean”

Plant Growth3%

“No algae growth”

Water Resistance3%

“Did not work in my water feature”

Contamination3%

“Mutating Algae From Hell”

Size-Overall2%

“need to find a larger size”

Strength2%

“after reading the directions I realized It was much too strong for my small birdbath”

Top return reasons

Advertised Vs Actual Product40%

Functionality-Overall19%

Size-Overall8%

Leak-Proof8%

Eco Friendliness5%

Value For Money4%

Compatibility-Overall2%

Water Resistance2%

Safety Standards2%

Defective Material/Parts1%

Common questions

Is fountain algaecide and clarifier profitable to sell on Amazon United States?: The niche generates $736K/yr across 15 tracked products. 90-day search growth is +251.6%. Flapen's verdict: Worth a look (69/100).
How competitive is the fountain algaecide and clarifier niche?: 9 brands and 63 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 87% of demand.
What do buyers complain about in fountain algaecide and clarifier?: Top complaints mined from reviews: Functionality-Overall, Value For Money, Advertised Vs Actual Product. The return rate is 0.6%.
When does demand for fountain algaecide and clarifier peak?: Demand peaks in May–Jun–Jul–Aug; the busiest month runs 9.7× the quietest.
What does it cost to enter the fountain algaecide and clarifier niche?: Listings span $10.22–$63.54; the average listing price is $22.99 (sweet spot $15–$100). The average incumbent carries 4,891 reviews — the moat a new listing must climb.