Phosphate Remover
MaybeAn estimated 0.4% of orders come back. But demand is soft, at -15.2% this quarter, so Phosphate Remover is a Maybe.
- Flapen Score
- 53 / 100Top 35% of 875 Pet Supplies niches · +3 vs the category median of 5053
- Market size
- £103K/yr75K searches / yr
- 90-day growth
- -15.2%search demand this quarter
- Competition
- 41%top-5 click share · 11 brands · 68 sellers
Flapen Score
Phosphate Remover against its category
The dotted line is the Pet Supplies average. Past it, Phosphate Remover is stronger. Inside it, weaker.
Market
The Phosphate Remover market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Phosphate Remover 75K times last year and spent an estimated £103K. The top 5 brands take 82% of clicks. Flapen scores it 53 out of 100, a Maybe.
01 · Demand
An estimated 10.0% of those searches ended in a purchase.
Shoppers searched for this 75K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 10.0% of those searches ended in a purchase. Searches in the last 90 days moved -15.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated £103K a year.
- Searches, last 12 months
- 75K
- Growth, 90 days vs prior 90
- -15.2%
- Conversion, latest week
- 10.0%
- Market size, estimated
- £103Ka year
- Peak month
- January1.4× the quietest month
- Top search term
- activated carbon24K searches a year
02 · Price
A sale here is worth £13.64.
Listings sell for £13.64 on average, from £4.08 to £38.83. Amazon reports units sold in ranges. This niche sold 5K to 6K a year. The average listing sells 100 to 250 of them. At £13.64 that is £1K to £3K a year per listing.
- Average price
- £13.64under the $15 to $100 sweet spot
- Price range
- £4.08–£38.83
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 5K–6K
- Units per listing a year
- 100–250
- Revenue per listing a year
- £1K–£3K
- Returns
- 0.4%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is low.
61% of listings pay for placement with sponsored ads. 84% ship with Prime. On an average day, 2.9% of listings are out of stock. The average listing ranks #176 within Fish & Aquatic Pets. It carries 1,332 reviews at 4.53 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 61%
- Prime listings
- 84%
- Out of stock, average day
- 2.9%
- Average rank
- #176in Fish & Aquatic Pets
- Average rating
- 4.53 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 1,332per listing
- Listings tracked
- 31
04 · Newcomers
2 of last year's 5 launches cleared the first-year sales bar.
5 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 53 months on average, so the names here are settling in.
- Launched, last 12 months
- 5
- Successful launches
- 2Amazon's first-year sales bar
- Average brand age
- 53 months
Products
Top Phosphate Remover 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
Fluval Carbon 800g complete with net bags
- Price
- £8.68
- Rating
- 4.6/5
- Reviews
- 7,092
- Age
- 16y ago

ACTIVATED CARBON 1000g AQUARIUM FISH TANK 3D PRINTING EXTERNAL FILTER MEDIA/KOI FISH POND WATER DECHLORINATOR FILTERS 1KG Kilo
- Price
- £9.94
- Rating
- 4.5/5
- Reviews
- 106
- Age
- 6y ago

FLUVAL 307/407 Media Value Pack
- Price
- £38.83
- Rating
- 4.7/5
- Reviews
- 712
- Age
- 5y ago

Fluval 306/307 Filter Media Bio-Foam Value Pack
- Price
- £14.82
- Rating
- 4.7/5
- Reviews
- 2,909
- Age
- 5y ago

Fluval 306/7 and 406/7 Filter Water Polishing Pad
- Price
- £5.26
- Rating
- 4.7/5
- Reviews
- 3,820
- Age
- 14y ago
Trending
estimated 90-day click momentum
beaufan 38 Pack Aquarium Filter Media Kit Compatible with Fluval 406/407 Canister Filters Includes Replacement Bio-Foams Activated Carbon & Ceramic Rings (2 Sets Maintenance Bundle)
- Price
- £38.30
- Rating
- 4.6/5
- Reviews
- 22
- Age
- 4mo ago

3 KILO 3KG ACTIVATED CARBON AQUARIUM 4MM DIAMETER PELLETS FISH TANK EXTERNAL FILTER MEDIA/KOI FISH POND WATER DECHLORINATOR FILTERS 3000g
- Price
- £20.65
- Rating
- 4.8/5
- Reviews
- 13
- Age
- 8mo ago

beaufan 38 Pack Aquarium Filter Media Kit Compatible with Fluval 306/307 Canister Filters Includes Bio Foam Activated Carbon & Ceramic Rings (2 Sets Maintenance Bundle)
- Price
- £38.24
- Rating
- 4.6/5
- Reviews
- 22
- Age
- 6mo ago

36 Pcs Filter Media Kit for Fluval 306/307 Canister Filters Include Water Polishing Pad Bio-Foam Pad Ammonia/Phosphate/Nitrite Remover 500g BioMax Media 500g Carbon Silicone Lube Filter Mesh Bag
- Price
- £28.10
- Rating
- 4.3/5
- Reviews
- 47
- Age
- 8mo ago

FLUVAL U2 Filter Media Value Pack Brand Genuine Complete Internal Filter Kit
- Price
- £14.37
- Rating
- 4.7/5
- Reviews
- 219
- Age
- 2y ago
Newest
by launch date
beaufan 38 Pack Aquarium Filter Media Kit Compatible with Fluval 406/407 Canister Filters Includes Replacement Bio-Foams Activated Carbon & Ceramic Rings (2 Sets Maintenance Bundle)
- Price
- £38.30
- Rating
- 4.6/5
- Reviews
- 22
- Age
- 4mo ago

beaufan 38 Pack Aquarium Filter Media Kit Compatible with Fluval 306/307 Canister Filters Includes Bio Foam Activated Carbon & Ceramic Rings (2 Sets Maintenance Bundle)
- Price
- £38.24
- Rating
- 4.6/5
- Reviews
- 22
- Age
- 6mo ago

36 Pcs Filter Media Kit for Fluval 306/307 Canister Filters Include Water Polishing Pad Bio-Foam Pad Ammonia/Phosphate/Nitrite Remover 500g BioMax Media 500g Carbon Silicone Lube Filter Mesh Bag
- Price
- £28.10
- Rating
- 4.3/5
- Reviews
- 47
- Age
- 8mo ago

3 KILO 3KG ACTIVATED CARBON AQUARIUM 4MM DIAMETER PELLETS FISH TANK EXTERNAL FILTER MEDIA/KOI FISH POND WATER DECHLORINATOR FILTERS 3000g
- Price
- £20.65
- Rating
- 4.8/5
- Reviews
- 13
- Age
- 8mo ago

Kenmohuo Eco-Aquarium Water Purifier Cube 2025 Activated Carbon Filter Cube Super Strong Filtration for Aquarium Fish Tank Horse Trough & Ponds | Reusable Honeycomb Purifier Block | Odor Control
- Price
- £11.89
- Rating
- 3.6/5
- Reviews
- 6
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 41% of clicks. Leaders hold, but buyers still shop past them.
Brands
11 rising
Sellers
68
Est. top-5 brand share
82%
Top 20: 100%
Est. top-5 click share
41%
Top 20: 89%
Open market
13%
- Fluval51%
- TGC12%
- ARKA7%
- Supa7%
- beaufan6%
- Intralabs4%
- Open — no brand owns it (5 brands, 13%)
Demand
Phosphate Remover search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.4×
Search terms
Top Phosphate Remover search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- activated carbon24K/yr
- fluval 307 filter media18K/yr
- carbon9K/yr
- fluval 407 filter media5K/yr
- fluval filter media5K/yr
- activated carbon aquarium5K/yr
- aquarium carbon4K/yr
- activated carbon for ponds4K/yr
Reviews and returns
What reviews say buyers love and hate about Phosphate Remover
We read the reviews and the return reasons for every product selling here.
“For some reason didn't fit my filter”
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.
16 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 Phosphate Remover 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









