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Swim Bladder Treatment for Fish

brand-locked demand (top 5 brands take 100% of clicks) — Swim Bladder Treatment for Fish doesn't clear our bar today.

Flapen Score

39
Skip it

Ranks 3,439 of 3,978 Pet Supplies niches · −12 vs the category median of 51

Market size 62Growth 20Conversion 100Competition 4Returns 96Price range 37Avg price 46Brand share 0Review moat 20Quality gap 17
This niche Category average · 3,978 niches

Is Swim Bladder Treatment for Fish profitable on Amazon?

According to Flapen's Amazon United States niche tracking, Swim Bladder Treatment for Fish is a $551K/yr Amazon United States market (225K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Aug–Sep. Verdict: Skip it — 39/100.

Swim Bladder Treatment for Fish: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -9.8% over the last 90 days and 21.2% of searches end in a purchase.

$551K

revenue / yr

Units sold / yr40K
Search volume / yr-9.8%225K
Conversion rate21.2%
Avg price$11.55

Who owns the niche?

The top 5 brands hold 100% of demand, so 0% of the market is open.

0%

open market share

Brands · sellers4 · 32
Top-5 product click share95%
Open market0%
Avg brand age88 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.7★ — the gap to enter on.

0/100

page quality · 6 products

Sponsored placement17%
New entrants (1y)0· 0 succeeded
Avg rating4.7★
Avg reviews13,380

Top Swim Bladder Treatment for Fish 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 95% of clicks — a locked-up shelf that new listings rarely crack.

$0$83K$165K$248K$331K1001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

4 falling

Sellers

32

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

95%

Top 20: 100%

Open market

0%

  • API64%
  • Tetra22%
  • Mars Fishcare North Amer8%
  • Instant Ocean6%

Swim Bladder Treatment for Fish demand & seasonality

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

Volume225KCVR21.2%Products6Brands4Top 5 Brands100%OOS Rate0.0%Rating4.7★Reviews13,380Avg BSR#57
6K4KPrime Day '25SepDecMarJunAugNovMarMay

Peak months: Aug, Sep · busiest ÷ quietest = 1.7×

Top Swim Bladder Treatment for Fish search terms shoppers use

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

  • aquarium salt144K/yr
  • aquarium salt freshwater31K/yr
  • api aquarium salt14K/yr
  • aquarium salt for freshwater tank12K/yr
  • aquarium salt for betta fish6K/yr
  • fish tank salt4K/yr
  • brine shrimp salt3K/yr
  • fish salt2K/yr
  • freshwater aquarium salt4K/yr
  • api salt2K/yr

What reviews say buyers love and hate about Swim Bladder Treatment for Fish

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

What buyers love

96% of reviews
Quality-Overall31%

High quality from API

Value For Money19%

budget-friendly

Advertised Vs Actual Product15%

As advertised

Size-Overall6%

Nice size

Pet Friendly6%

Good for fish

What buyers complain about

90% of reviews
Size-Overall20%

The bag opening is so small that you can barely get a measuring spoon in it

Value For Money20%

1 qt of salt for $12.00 is ridiculous

Moist/Dry20%

Box will get wet

Contamination20%

lost a couple fish

Texture/Consistency-Overall10%

It's a bit granular

Swim Bladder Treatment for Fish return rate & reasons

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

0.9%

Return rate

23%

Fixable by listing

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

1Leak-Proof
40%
2Size-Overall
13%
3Value For Money
12%
4Advertised Vs Actual Product
9%
5Contamination
4%

Common Swim Bladder Treatment for Fish questions

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

Flapen scores Swim Bladder Treatment for Fish 39/100 on Amazon United States — Skip it. The niche generates $551K/yr across 6 tracked products. Search demand moved -9.8% over the last 90 days.
Search demand for Swim Bladder Treatment for Fish on Amazon United States peaks in Aug–Sep, where the busiest month runs 1.7× the quietest.