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Fish Antibiotic

Maybe

Buyers convert on 12.9% of searches. But demand is soft, at -12.7% this quarter, so Fish Antibiotic is a Maybe.

Flapen Score
55
55 / 100
Top 30% of 3,978 Pet Supplies niches · +4 vs the category median of 51
Market size
$2.1M/yr576K searches / yr
90-day growth
-12.7%search demand this quarter
Competition
70%top-5 click share · 6 brands · 58 sellers

Flapen Score

Fish Antibiotic against its category

The dotted line is the Pet Supplies average. Past it, Fish Antibiotic is stronger. Inside it, weaker.

55Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Fish Antibiotic market on Amazon at a glance

Shoppers on Amazon United States searched for Fish Antibiotic 576K times last year and spent an estimated $2.1M. The top 5 brands take 92% of clicks. Flapen scores it 55 out of 100, a Maybe.

01 · Demand

An estimated 12.9% of those searches ended in a purchase.

Shoppers searched for this 576K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 12.9% of those searches ended in a purchase. Searches in the last 90 days moved -12.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated $2.1M a year.

Searches, last 12 months
576K
Growth, 90 days vs prior 90
-12.7%
Conversion, latest week
12.9%
Market size, estimated
$2.1Ma year
Peak month
February1.4× the quietest month
Top search term
kanaplex115K searches a year

02 · Price

A sale here is worth $28.62.

Listings sell for $28.62 on average, from $4.53 to $80.57. Amazon reports units sold in ranges. This niche sold 60K to 80K a year. The average listing sells 4,000 to 5,000 of them. At $28.62 that is $114K to $143K a year per listing.

Average price
$28.62inside the $15 to $100 sweet spot
Price range
$4.53–$80.57
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
60K–80K
Units per listing a year
4,000–5,000
Revenue per listing a year
$114K–$143K
Returns
1.3%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is reviews.

54% of listings pay for placement with sponsored ads. 92% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #87 within Fish & Aquatic Pets. It carries 3,752 reviews at 4.58 stars, so a new listing needs social proof before a better product.

Sponsored listings
54%
Prime listings
92%
Out of stock, average day
0.0%
Average rank
#87in Fish & Aquatic Pets
Average rating
4.58 starsAmazon United States average 4.42 stars
Average reviews
3,752per listing
Listings tracked
13

04 · Newcomers

Brands here are established.

The brands on the shelf have sold for 69 months on average, so the names here are established.

Launched, last 12 months
0
Successful launches
0Amazon's first-year sales bar
Average brand age
69 months

Products

Top Fish Antibiotic products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 17, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 70% of clicks. Leaders hold, but buyers still shop past them.

$0$213K$426K$639K$852K101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

6 rising

Sellers

58

Est. top-5 brand share

92%

Top 20: 94%

Est. top-5 click share

70%

Top 20: 100%

Open market

2%

  • Seachem41%
  • API34%
  • Fritz Aquatics8%
  • --6%
  • Generic5%
  • Seachem Treatments3%
  • Open — no brand owns it (2%)

Demand

Fish Antibiotic search demand

Weekly searches over the year, seasonality beneath. Pick a range.

13K8KSpike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Search terms

Top Fish Antibiotic search terms shoppers use

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

  • kanaplex115K/yr
  • fish antibiotics110K/yr
  • seachem kanaplex31K/yr
  • kanaplex fish medication42K/yr
  • api general cure33K/yr
  • melafix27K/yr
  • fish medicine22K/yr
  • maracyn25K/yr
  • maracyn 222K/yr
  • api fin and body cure15K/yr

Reviews and returns

What reviews say buyers love and hate about Fish Antibiotic

We read the reviews and the return reasons for every product selling here.

26%of positive reviews mention “Quality-Overall”
14%of negative reviews mention “Durability”
1.3%of orders come back
“it nearly killed everything in under an hour”
A buyer, on “Durability”14% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

21 topics

NegativePositive

FAQ

Common Fish Antibiotic questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data