Fish Antibiotics
FailThe top 5 brands take 100% of clicks, so Fish Antibiotics is a Fail.
- Flapen Score
- 36 / 100Ranks 823 of 875 Pet Supplies niches · −14 vs the category median of 5036
- Market size
- £79K/yr89K searches / yr
- 90-day growth
- -33.7%search demand this quarter
- Competition
- 66%top-5 click share · 5 brands · 38 sellers
Flapen Score
Fish Antibiotics against its category
The dotted line is the Pet Supplies average. Past it, Fish Antibiotics is stronger. Inside it, weaker.
Market
The Fish Antibiotics market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Fish Antibiotics 89K times last year and spent an estimated £79K. All 5 brands take every click. Demand peaks in Oct. Flapen scores it 36 out of 100, a Fail.
01 · Demand
An estimated 9.9% of those searches ended in a purchase.
Shoppers searched for this 89K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 9.9% of those searches ended in a purchase. Searches in the last 90 days moved -33.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated £79K a year.
- Searches, last 12 months
- 89K
- Growth, 90 days vs prior 90
- -33.7%
- Conversion, latest week
- 9.9%
- Market size, estimated
- £79Ka year
- Peak month
- October1.9× the quietest month
- Top search term
- kanaplex13K searches a year
02 · Price
A sale here is worth £9.02.
Listings sell for £9.02 on average, from £3.78 to £16.89. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 250 to 500 of them. At £9.02 that is £2K to £5K a year per listing.
- Average price
- £9.02under the $15 to $100 sweet spot
- Price range
- £3.78–£16.89
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 6K–8K
- Units per listing a year
- 250–500
- Revenue per listing a year
- £2K–£5K
- Returns
- 0.4%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is reviews.
63% of listings pay for placement with sponsored ads. 81% ship with Prime. On an average day, 1.4% of listings are out of stock. The average listing ranks #94 within Fish & Aquatic Pets. It carries 3,236 reviews at 4.43 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 63%
- Prime listings
- 81%
- Out of stock, average day
- 1.4%
- Average rank
- #94in Fish & Aquatic Pets
- Average rating
- 4.43 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 3,236per listing
- Listings tracked
- 16
04 · Newcomers
0 of last year's 3 launches cleared the first-year sales bar.
3 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 90 months on average, so the names here are established.
- Launched, last 12 months
- 3
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 90 months
Products
Top Fish Antibiotics 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 29, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
API Melafix Freshwater Fish Bacterial Infection Remedy 237ml Bottle
- Price
- £7.94
- Rating
- 4.5/5
- Reviews
- 11,330
- Age
- 16y ago

API Melafix Freshwater Fish Bacterial Infection Remedy 473 ml Bottle
- Price
- £12.43
- Rating
- 4.5/5
- Reviews
- 11,330
- Age
- 16y ago

API Melafix 118Ml
- Price
- £5.87
- Rating
- 4.5/5
- Reviews
- 924
- Age
- 16y ago

eSHa 2000 - Fungus Finrot and Bacteria Treatment *Pack Of Two*
- Price
- £12.20
- Rating
- 4.7/5
- Reviews
- 673
- Age
- 13y ago

NT Labs Aquarium Anti-Internal Bacteria Treatment (100ml Treats 500L)
- Price
- £7.43
- Rating
- 4.5/5
- Reviews
- 79
- Age
- 13y ago
Trending
estimated 90-day click momentum
API Fish Treatment Remedy & Aquarium Salt Bundle Melafix 237ml + Salt 454g
- Price
- £12.54
- Rating
- 3.0/5
- Reviews
- 1
- Age
- 3mo ago

API Fish Treatment Bundle Pimafix 237ml + Melafix 118ml Antifungal & Bacterial
- Price
- £16.89
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 3mo ago

Tetra Pond MediFin to Treat Most Common Fish Diseases 250 ml
- Price
- £6.79
- Rating
- 4.6/5
- Reviews
- 1,095
- Age
- 19y ago

3 x 118ml API Fish First Aid Disease Treatment Bundle Fish Medication Bottle
- Price
- £16.27
- Rating
- 4.5/5
- Reviews
- 37
- Age
- 9mo ago

NT Labs Aquarium Anti-Internal Bacteria Treatment (100ml Treats 500L)
- Price
- £7.43
- Rating
- 4.5/5
- Reviews
- 79
- Age
- 13y ago
Newest
by launch date
API Fish Treatment Bundle Pimafix 237ml + Melafix 118ml Antifungal & Bacterial
- Price
- £16.89
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 3mo ago

API Fish Treatment Remedy & Aquarium Salt Bundle Melafix 237ml + Salt 454g
- Price
- £12.54
- Rating
- 3.0/5
- Reviews
- 1
- Age
- 3mo ago

3 x 118ml API Fish First Aid Disease Treatment Bundle Fish Medication Bottle
- Price
- £16.27
- Rating
- 4.5/5
- Reviews
- 37
- Age
- 9mo ago

Interpet Anti Bacteria Aquarium Fish Treatment 100 ml clear
- Price
- £3.78
- Rating
- 4.5/5
- Reviews
- 1,991
- Age
- 10y ago

Interpet Anti Fungus and Finrot Aquarium Fish Treatment 100 ml
- Price
- £3.99
- Rating
- 4.3/5
- Reviews
- 2,420
- Age
- 10y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 66% of clicks. Leaders hold, but buyers still shop past them.
Brands
5 falling
Sellers
38
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
66%
Top 20: 100%
Open market
0%
- API76%
- NT Labs11%
- Ace Canine6%
- Interpet5%
- Tetra2%
Demand
Fish Antibiotics search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Oct · busiest ÷ quietest = 1.9×
Search terms
Top Fish Antibiotics search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- kanaplex13K/yr
- melafix fish treatment9K/yr
- fish antibiotics9K/yr
- api general cure6K/yr
- fin rot treatment tropical fish7K/yr
- fish treatment5K/yr
- melafix7K/yr
- seachem kanaplex3K/yr
- fish medicine4K/yr
- api melafix5K/yr
Reviews and returns
What reviews say buyers love and hate about Fish Antibiotics
We read the reviews and the return reasons for every product selling here.
“Didn't work”
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.
24 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Fish Antibiotics 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









