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Algae Wafers

prices mostly outside the sweet spot ($3.42–$15.54) — Algae Wafers doesn't clear our bar today.

Flapen Score

42
Skip it

Ranks 3,174 of 3,978 Pet Supplies niches · −9 vs the category median of 51

Market size 54Growth 28Conversion 100Competition 24Returns 100Price range 4Avg price 24Brand share 15Review moat 24Quality gap 23
This niche Category average · 3,978 niches

Is Algae Wafers profitable on Amazon?

According to Flapen's Amazon United States niche tracking, Algae Wafers is a $365K/yr Amazon United States market (197K searches/yr). The top 5 brands hold 94% of demand. Verdict: Skip it — 42/100.

Algae Wafers: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved +2.4% over the last 90 days and 21.4% of searches end in a purchase.

$365K

revenue / yr

Units sold / yr50K
Search volume / yr+2.4%197K
Conversion rate21.4%
Avg price$8.70

Who owns the niche?

The top 5 brands hold 94% of demand, so 6% of the market is open.

6%

open market share

Brands · sellers8 · 45
Top-5 product click share71%
Open market6%
Avg brand age79 months

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 · 16 products

Sponsored placement50%
New entrants (1y)3· 2 succeeded
Avg rating4.6★
Avg reviews5,792

Top Algae Wafers products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

$0$37K$73K$110K$146K1001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

8 falling

Sellers

45

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

3%

  • Hikari36%
  • Tetra22%
  • API17%
  • Ultra Fresh11%
  • BIG KAHUNA TROPICAL FISH8%
  • Invert Aquatics3%
  • Open — no brand owns it (2 brands, 3%)

Algae Wafers demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume197KCVR21.4%Products16Brands8Top 5 Brands94%OOS Rate1.0%Rating4.6★Reviews5,792Avg BSR#97
7K5KPrime Day '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Top Algae Wafers search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • algae wafers141K/yr
  • algae wafers for bottom feeders19K/yr
  • algae eater food6K/yr
  • alge wafers3K/yr
  • algae tablets for fish tank6K/yr
  • algae wafer4K/yr
  • sucker fish food4K/yr
  • sinking algae wafers3K/yr
  • algae wafers for pleco4K/yr
  • algae fish food3K/yr

What reviews say buyers love and hate about Algae Wafers

What buyers mention most, as a share of all reviews.

What buyers love

82% of reviews
Quality-Overall21%

Good quality food

Value For Money12%

Worth the money

Pet Friendly10%

shrimp love it

Size-Overall10%

Good size

Advertised Vs Actual Product8%

Just what I needed

What buyers complain about

72% of reviews
Value For Money19%

Fish food little cheaper

Ease Of Cleaning13%

making a mess in the tank

Size-Overall10%

Big bag

Water Flow7%

fouls the water

Durability7%

It breaks down slowly

Algae Wafers return rate & reasons

Why buyers send it back, as a share of all return requests.

0.0%

Return rate

72%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Size-Overall
70%
2Functionality-Overall
13%
3Advertised Vs Actual Product
7%
4Stale/Rotten/Spoiled
7%
5Adhesion/Stickiness
7%

Common Algae Wafers questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Algae Wafers 42/100 on Amazon United States — Skip it. The niche generates $365K/yr across 16 tracked products. 2 of 3 products launched in the last 360 days are still selling. Search demand moved +2.4% over the last 90 days.
Search demand for Algae Wafers on Amazon United States is steady year-round — the busiest month runs 1.4× the quietest.