tropical fish food
Skip itPrices mostly outside the sweet spot ($2.73–$11.69) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible17.7%search→purchase rate — share of searches ending in a sale
Market size
Good£309K£309K/yr · 286K searches
Competition
Okay65%top-5 click share — leaders hold, buyers still browse
Brand share
Okay88%top-5 brand share — brands hold most of the demand
Review moat
Okay3,962.25avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-12.7%90-day search growth — must beat 0% to launch
Avg price
Bad£6.08avg listing price — sweet spot $15–$100
Price range
Bad£2.73–£11.69cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, tropical fish food is a £309K/yr Amazon United Kingdom market (286K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in Aug–Sep. Verdict: Skip it — 43/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
tropical fish food market data
- Units sold / yr
- 40K–50K
- avg 2,000–2,500/product
- Revenue / yr
- £243K–£304K
- units × avg price
- Conversion rate
- 17.7%
- Avg BSR
- #42
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 88%
- Out of stock
- 0.0%
- Avg brand age
- 80 months
- Avg seller age
- 181 days
Competition & brand share
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.Brands
10 falling
Sellers
45
Top-5 brand share
88%
Top 20: 100%
Top-5 click share
65%
Top 20: 100%
Open market
9%
- AQUARIAN44%
- HERONS16%
- Tetra12%
- King British12%
- Walter Products Wildlife and Aquatics4%
- PROREZULT3%
- Open — no brand owns it (4 brands, 9%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -12.7% search growth over the last 90 days.Peak months: Aug, Sep · busiest ÷ quietest = 2.5×
Top tropical fish food search terms
- tropical fish food165K/yr
- tropical fish flakes12K/yr
- tropical fish food flakes29K/yr
- fish food tropical13K/yr
- aquarium fish food12K/yr
- fish food aquarium tropical9K/yr
- tropical fish food pellets8K/yr
- aquarian tropical fish food flakes8K/yr
- fish flakes tropical7K/yr
- tropical food fish5K/yr
Top tropical 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 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
AQUARIAN Complete Nutrition Aquarium Tropical & Temperate Fish Food Flakes 50g Container
AQUARIAN£3.714.7★12,866 rev
HERONS - Tropical Flakes - For all Tropical Fish - Guppies Bettas Neons Cichlids Angelfish Swordtails - Multi-Nutrient Complex - Supports Growth Colouration and Immune System - 100 Grams
HERONS£3.264.5★1,252 rev
AQUARIAN Complete Nutrition Aquarium Tropical Fish Food Flakes 25g Container
AQUARIAN£2.734.7★12,866 rev
King British Tropical Fish Flake 55g Multi-Vitamin Complete Food Clear Water Formula Natural Ingredients For Tropical & Other Aquarium Fish
King British£5.244.6★940 rev
Tetra Pro Colour Multi-Crisps - Premium fish food with colour concentrate for brightly colourful Fish 500ml
Tetra£6.204.7★4,324 rev
Newest
by launch date
Ultra Fresh Tetra Fish Food Slow Sinking All Natural Ingredients Wild Sword Prawns Spirulina Color Enhancement Small Granules Tropical Micro Pellet 53g
Ultra Fresh£8.113,153 rev
King British Tropical Mini Pellets 55g Multi-Vitamin Complete Fish Food Low Waste Clear Water Formula Natural Ingredients For Tropical Fish
King British£3.29940 rev
King British Tropical Fish Flake 55g Multi-Vitamin Complete Food Clear Water Formula Natural Ingredients For Tropical & Other Aquarium Fish
King British£5.24940 rev
King British Tropical Fish Flake 12g Multi-Vitamin Complete Food Clear Water Formula Natural Ingredients For Tropical & Other Aquarium Fish
King British£2.91940 rev
Pet Friend Tropical Fish Food Aquarium Flake High Protein Growth & Colour Feeding For Tetra And Other Fresh Water Species 50g
Pet Friend£3.9391 rev
Trending
90-day click momentumUltra Fresh Tetra Fish Food Slow Sinking All Natural Ingredients Wild Sword Prawns Spirulina Color Enhancement Small Granules Tropical Micro Pellet 53g
Ultra Fresh£8.114.6★
Walters Tropical Flakes 1L Tub (200g) | Food Flakes for Tropical Aquarium Fish | Guppy Daphnia and Cichlid Fish Food
Walter Products Wildlife and Aquatics£7.874.5★
Tetra Pro Colour Multi-Crisps - Premium fish food with colour concentrate for brightly colourful Fish 500ml
Tetra£6.204.7★
AQUARIAN Complete Nutrition Aquarium Tropical Fish Food Flakes 25g Container
AQUARIAN£2.734.7★
AQUARIAN Complete Nutrition Aquarium Tropical & Temperate Fish Food Flakes 50g Container
AQUARIAN£3.714.7★
What buyers say about tropical fish food
What buyers praise and complain about, mined from review topics.What buyers love
“Quality food”
“Great value for money”
“My fish really like this food”
“Great item for my fish tank”
“Decent size”
“As expected”
“And theyre looking really good theyre colours are brighter”
“ideal easy to use”
“Very good quantity”
“Doesn't seem to break down even after days”
What buyers complain about
“Small pot”
“Its cheap so I suppose you get the quality you pay for”
“Soon broke into smaller flakes”
“Poor”
“the water went very cloudy”
“is not good for your filter”
“I was a bit misled by the proof of deliver picture”
“now I have a snail infestation”
“these have gone way over priced”
“It smells weird”
Common questions
- Is tropical fish food profitable to sell on Amazon United Kingdom?
- The niche generates £309K/yr across 16 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -12.7%. Flapen's verdict: Skip it (43/100).
- How competitive is the tropical fish food niche?
- 10 brands and 45 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 88% of demand.
- What do buyers complain about in tropical fish food?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 0.0%.
- When does demand for tropical fish food peak?
- Demand peaks in Aug–Sep; the busiest month runs 2.5× the quietest.
- What does it cost to enter the tropical fish food niche?
- Listings span £2.73–£11.69; the average listing price is £6.08 (sweet spot $15–$100). The average incumbent carries 3,962 reviews — the moat a new listing must climb.