koi fish food
Worth a lookShows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Growth
Incredible+121.2%90-day search growth — must beat 0% to launch
Conversion
Great11.9%search→purchase rate — share of searches ending in a sale
Avg price
Great£20.11avg listing price — sweet spot $15–$100
Price range
Great£3.88–£90.11cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good786.97avg incumbent reviews — the moat a new listing must climb
Competition
Good46%top-5 click share — leaders hold, buyers still browse
Market size
Good£371K£371K/yr · 155K searches
Brand share
Okay78%top-5 brand share — brands hold most of the demand
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United Kingdom niche tracking, koi fish food is a £371K/yr Amazon United Kingdom market (155K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Apr–May–Jun–Jul–Aug. Verdict: Worth a look — 70/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
koi fish food market data
- Units sold / yr
- 15K–20K
- avg 250–500/product
- Revenue / yr
- £302K–£402K
- units × avg price
- Conversion rate
- 11.9%
- Avg BSR
- #45
- Page quality
- 0%
- Prime
- 73%
- Sponsored
- 81%
- Out of stock
- 0.0%
- Avg brand age
- 102 months
- Avg seller age
- 193 days
Competition & brand share
The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.Brands
12 falling
Sellers
40
Top-5 brand share
78%
Top 20: 100%
Top-5 click share
46%
Top 20: 85%
Open market
16%
- HERONS37%
- Tetra13%
- Extra Select11%
- Walter Products Wildlife and Aquatics10%
- STARMER aquatic feed7%
- Pond Friend6%
- Open — no brand owns it (6 brands, 16%)
Demand & seasonality
Weekly Amazon search volume, last 102 weeks — +121.2% search growth over the last 90 days.Peak months: Apr, May, Jun, Jul, Aug · busiest ÷ quietest = 11.4×
Top koi fish food search terms
- koi fish food70K/yr
- koi food46K/yr
- koi fish food pellets11K/yr
- koi carp fish food for pond11K/yr
- koi pellets5K/yr
- koi food 10kg4K/yr
- koi sticks4K/yr
- carp food3K/yr
Top koi fish food products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
HERONS - Koi Trio Pellets 3mm Premium Koi Fish Food For Japanese Koi and Other Pond Fish Prebiotic Pellets With Spirulina Omega 3 Amino Acids Colour and Growth Enhancing - 1Kg
HERONS£7.394.6★1,836 rev
Tetra Koi Pond Fish Food Sticks 1.5kg - biologically balanced for koi fish
Tetra£19.644.7★1,871 rev
HERONS - Koi Growth & Colour Pellets 6mm Premium Pond Fish Food For Koi Carp Shubunkin and Goldfish Growth and Colour Enhancing High Protein Multi Ingredient 1Kg
HERONS£7.574.6★345 rev
HERONS Pond Sticks Mix Ultralight (10L Refill Bag) - Koi & Goldfish Food - Excellent Value - Complete Feed for all Pond Fish - Premium Variety Pond Sticks - 10 Litre
HERONS£8.294.6★798 rev
Koi carp 30% protein GROWER pond feed all natural pellets (Adult size) 10kg
STARMER aquatic feed£23.174.5★1,427 rev
Newest
by launch date
starmerbaits (COLOUR ENHANCER GROWER PRO) high protein koi carp pond feed pellets (adult) 10kg
starmerbaits£28.2931 rev
Walters Variety Sticks 40L Bag for Goldfish Koi Carp and all Cold Water Pond Fish. Balanced complete lightweight floating pond fish food with natural ingredients. 3kg bag
Walter Products Wildlife and Aquatics£21.45240 rev
Walters Variety Pellets (lightweight) 40L bag for Goldfish Koi Carp and all Cold Water Pond Fish. Nutritionally balanced complete floating fish food with natural ingredients
Walter Products Wildlife and Aquatics£21.87190 rev
HERONS Pond Sticks Mix Ultralight (10L Refill Bag) - Koi & Goldfish Food - Excellent Value - Complete Feed for all Pond Fish - Premium Variety Pond Sticks - 10 Litre
HERONS£8.29798 rev
Pond Friend Koi Growth Pellets Floating Pond Fish Food 1250g 4.5mm Carp & Goldfish High Protien Diet For Fast Growth
Pond Friend£14.1431 rev
Trending
90-day click momentumPond Friend Koi Growth Pellets Floating Pond Fish Food 1250g 4.5mm Carp & Goldfish High Protien Diet For Fast Growth
Pond Friend£14.144.8★
Walters Variety Sticks (10L Refill Bag) | Pond Fish Food for Goldfish Koi and all Cold Water Pond Fish | Floating Fish Food Pond Sticks in Stay Fresh EasyTubs and Refill Bags
Walter Products Wildlife and Aquatics£9.904.5★
Pond Friend Mixed Fish Food Sticks 1820g High-Weight Premium Floating Pellets for Koi Carp Goldfish & Surface Feeding Pond Fish
Pond Friend£10.964.5★
Kockney Koi Superior mix with added sirulina and vitamin C 2 KG
Yamitsu£19.564.6★
Tetra Koi Pond Fish Food Colour & Growth Sticks 270g - biologically balanced for larger koi fish
Tetra£5.024.6★
What buyers say about koi fish food
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent value”
“Good Quality food”
“my fish love it”
“my koi love this food”
“As expected”
“Ideal size”
“bright colours”
“Good value last a few months”
“Large bag and easy to use”
“doesn't cloud the water”
What buyers complain about
“But a lot smaller than the floating sticks”
“Cheap koi food”
“Fish love it bit expensive”
“Fish seem to like it I can't say what it tastes like as I have no intention of trying it”
“Bad for water quality”
“I am now trying to remove the scum with difficulty there is a problem with this as I have used this food before”
“Mouldy”
“Noticeably heavier than previously bought sticks from another supplier”
Common questions
- Is koi fish food profitable to sell on Amazon United Kingdom?
- The niche generates £371K/yr across 37 tracked products. 90-day search growth is +121.2%. Flapen's verdict: Worth a look (70/100).
- How competitive is the koi fish food niche?
- 12 brands and 40 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 78% of demand.
- What do buyers complain about in koi fish food?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Value For Money. The return rate is 0.0%.
- When does demand for koi fish food peak?
- Demand peaks in Apr–May–Jun–Jul–Aug; the busiest month runs 11.4× the quietest.
- What does it cost to enter the koi fish food niche?
- Listings span £3.88–£90.11; the average listing price is £20.11 (sweet spot $15–$100). The average incumbent carries 787 reviews — the moat a new listing must climb.