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
Ranks 3,439 of 3,978 Pet Supplies niches · −12 vs the category median of 51
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
Who owns the niche?
The top 5 brands hold 100% of demand, so 0% of the market is open.
0%
open market share
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
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.
Top sellers
by 90-day click share
API AQUARIUM SALT Freshwater Aquarium Salt 36-Ounce Box
- Price
- $8.94
- Rating
- 4.7/5
- Reviews
- 23,796
- Age
- 22y ago

Tetra Aquarium Salt for Freshwater Fish Tanks 16 Ounces Salt for Tropical and Goldfish Aquariums Enhances the Health of Your Aquatic Pets
- Price
- $4.08
- Rating
- 4.8/5
- Reviews
- 282
- Age
- 1y ago

API AQUARIUM SALT Freshwater Aquarium Salt 17-Ounce Box
- Price
- $8.21
- Rating
- 4.7/5
- Reviews
- 23,796
- Age
- 22y ago

Aquarium Salt 1 Qt
- Price
- $14.14
- Rating
- 4.7/5
- Reviews
- 185
- Age
- 14y ago

Instant Ocean Sea Salt 50 Gallons For Marine Aquariums Fast Dissolving
- Price
- $21.40
- Rating
- 4.8/5
- Reviews
- 8,424
- Age
- 24y ago
Trending
90-day click momentum
Tetra Aquarium Salt for Freshwater Fish Tanks 16 Ounces Salt for Tropical and Goldfish Aquariums Enhances the Health of Your Aquatic Pets
- Price
- $4.08
- Rating
- 4.8/5
- Reviews
- 282
- Age
- 1y ago

API AQUARIUM SALT Freshwater Aquarium Salt 36-Ounce Box
- Price
- $8.94
- Rating
- 4.7/5
- Reviews
- 23,796
- Age
- 22y ago

API AQUARIUM SALT Freshwater Aquarium Salt 17-Ounce Box
- Price
- $8.21
- Rating
- 4.7/5
- Reviews
- 23,796
- Age
- 22y ago

Instant Ocean Sea Salt 50 Gallons For Marine Aquariums Fast Dissolving
- Price
- $21.40
- Rating
- 4.8/5
- Reviews
- 8,424
- Age
- 24y ago

Aquarium Salt 1 Qt
- Price
- $14.14
- Rating
- 4.7/5
- Reviews
- 185
- Age
- 14y ago
Newest
by launch date
Tetra Aquarium Salt for Freshwater Fish Tanks 16 Ounces Salt for Tropical and Goldfish Aquariums Enhances the Health of Your Aquatic Pets
- Price
- $4.08
- Rating
- 4.8/5
- Reviews
- 282
- Age
- 1y ago

Aquarium Salt 1 Qt
- Price
- $14.14
- Rating
- 4.7/5
- Reviews
- 185
- Age
- 14y ago

API AQUARIUM SALT Freshwater Aquarium Salt 17-Ounce Box
- Price
- $8.21
- Rating
- 4.7/5
- Reviews
- 23,796
- Age
- 22y ago

API AQUARIUM SALT Freshwater Aquarium Salt 67-Ounce Box
- Price
- $12.53
- Rating
- 4.7/5
- Reviews
- 23,796
- Age
- 22y ago

API AQUARIUM SALT Freshwater Aquarium Salt 36-Ounce Box
- Price
- $8.94
- Rating
- 4.7/5
- Reviews
- 23,796
- Age
- 22y ago
Competition: brands, sellers & click share
The top 5 products capture 95% of clicks — a locked-up shelf that new listings rarely crack.
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.
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“High quality from API”
“budget-friendly”
“As advertised”
“Nice size”
“Good for fish”
What buyers complain about
90% of reviews“The bag opening is so small that you can barely get a measuring spoon in it”
“1 qt of salt for $12.00 is ridiculous”
“Box will get wet”
“lost a couple fish”
“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.
Common Swim Bladder Treatment for Fish 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.









