bio media
Worth a lookShows a sweet-spot price point ($60.22 avg), but brand-locked demand (top 5 brands take 98% of clicks) keeps it on the watch list.
Avg price
Great$60.22avg listing price — sweet spot $15–$100
Returns
Great1.6%return rate — above 6% kills the launch gate
Competition
Good41%top-5 click share — leaders hold, buyers still browse
Market size
Good$777K$777K/yr · 345K searches
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Okay3.7%search→purchase rate — share of searches ending in a sale
Price range
Okay$4.66–$293.23cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Bad4,341.13avg incumbent reviews — the moat a new listing must climb
Growth
Bad-18.8%90-day search growth — must beat 0% to launch
Brand share
Bad98%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, bio media is a $777K/yr Amazon United States market (345K searches/yr). The top 5 brands hold 98% of demand. Demand peaks in Jan–Nov. Verdict: Worth a look — 50/100.
Data updated Jul 17, 2026 · scored weekly · How we score niches
bio media market data
- Units sold / yr
- 13K–15K
- avg 250–500/product
- Revenue / yr
- $753K–$903K
- units × avg price
- Launch success
- —
- 1 of 2 new (360d)
- Conversion rate
- 3.7%
- Avg BSR
- #193
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 83%
- Out of stock
- 2.0%
- Avg brand age
- 45 months
- Avg seller age
- 149 days
Competition & brand share
The top 5 products take 41% of clicks — established leaders, but buyers still shop beyond them.Brands
8 falling
Sellers
77
Top-5 brand share
98%
Top 20: 100%
Top-5 click share
41%
Top 20: 81%
Open market
1%
- Fluval91%
- Tofcbye3%
- Podoy2%
- THREELIN1%
- FIX ZHANG1%
- beaufan1%
- Open — no brand owns it (2 brands, 1%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -18.8% search growth over the last 90 days.Peak months: Jan, Nov · busiest ÷ quietest = 4.0×
Top bio media search terms
- fluval143K/yr
- fluval filter137K/yr
- fluval aquarium filter12K/yr
- fluval fx4 filter media11K/yr
- fx4 filter media8K/yr
- fluval fx6 filter media10K/yr
- fx6 filter media7K/yr
- fluval filters8K/yr
- fx6 filter pads5K/yr
- fluval fish tank filter4K/yr
Top bio media 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 40 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
AC50 Power Filter 20-50 US Gal / 76-190 L - Fluval USA (fluvalaquatics.com)
Fluval$51.474.3★363 rev
AC20 Power Filter 5-20 US Gal / 18-76 L - Fluval USA (fluvalaquatics.com)
Fluval$34.784.4★636 rev
Fluval 407 Perfomance Canister Filter - For Aquariums Up To 100 Gallons - Aquarium Canister Filter
Fluval$211.384.5★9,902 rev
AquaClear 70 Power Filter Fish Tank Filter for 40- to 70-Gallon Aquariums Black
Fluval$65.354.3★4,920 rev
Fluval 307 Perfomance Canister Filter - for Aquariums Up to 70 Gallons - Aquarium Canister Filter
Fluval$166.884.5★9,902 rev
Newest
by launch date
Trident Nova FX4/FX5/FX6 Filter Media Canister Filter Maintenance and Replacement Filter Media Kit Including Media Bags (FX Foam Filter Pads Quick Clear/Water Polishing Pads BioFoam+)
Trident Nova$84.902 rev
Aquarium Filter Media Set for Fluval SPEC EVO Betta and Flex Desktop Aquarium Series Includes 1 Biomax Filter Media 1 Carbon Filter Refills 1 Foam Filter 1 Filter Cord and 2 Cleaning Brushes
FIX ZHANG$18.3111 rev
23 PCS Aquarium Media Kits Replacement for Fluval FX2 / FX4 / FX5 / FX6 Canister Filters Including Bio-Foam Block Carbon Sponge Filter Ceramic Ring Activated Carbon Silicone Lubricant Mesh Bag
beaufan$56.2557 rev
Tofcbye Replacement Filter Media Kit for Fluval FX2/FX4/FX5/FX6 Aquarium Filters 28 Pcs
Tofcbye$48.3566 rev
Threlaco 24 Pcs Aquarium Filter Media Kit Compatible with Fluval Fx4/Fx5/Fx6 Filters 4 Bio-Sponge Pads 6 Bio-Sponge Block 6 Activated Carbon 4 Carbon Foam Pad 2 Silicone Lube 2 Ceramic Rings
Threlaco$59.6734 rev
Trending
90-day click momentumAquarium Filter Media Set for Fluval SPEC EVO Betta and Flex Desktop Aquarium Series Includes 1 Biomax Filter Media 1 Carbon Filter Refills 1 Foam Filter 1 Filter Cord and 2 Cleaning Brushes
FIX ZHANG$18.314.7★
AquaClear 70 Power Filter Fish Tank Filter for 40- to 70-Gallon Aquariums Black
Fluval$65.354.3★
Tofcbye Replacement Filter Media Kit for Fluval FX2/FX4/FX5/FX6 Aquarium Filters 28 Pcs
Tofcbye$48.354.4★
Fluval - Media Maintenance Kit for AC50 Power Filter - for Use in Freshwater & Saltwater Aquariums
Fluval$13.264.7★
Trident Nova FX4/FX5/FX6 Filter Media Canister Filter Maintenance and Replacement Filter Media Kit Including Media Bags (FX Foam Filter Pads Quick Clear/Water Polishing Pads BioFoam+)
Trident Nova$84.903.0★
What buyers say about bio media
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality filter”
“Quality product does exactly as advertised”
“DECENT PRICE”
“As shown”
“Fit exactly”
“you keep them clean”
“Easy to use”
“Helps keep water clear”
“The pump has nice flow”
“It has been almost a year since I purchased this”
What buyers complain about
“broke after just over a year of use”
“Worst filter ever”
“Leaks badly”
“Not inexpensive either”
“No quality control”
“Arrived completely dirty”
“Received used product”
“Its so hard to get water flowing again”
“A little off-sized”
“Impeller stops often other than nice and quite”
Top return reasons
Common questions
- Is bio media profitable to sell on Amazon United States?
- The niche generates $777K/yr across 40 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -18.8%. Flapen's verdict: Worth a look (50/100).
- How competitive is the bio media niche?
- 8 brands and 77 sellers compete. The top 5 products take 41% of clicks and top 5 brands hold 98% of demand.
- What do buyers complain about in bio media?
- Top complaints mined from reviews: Durability, Filtration, Leak-Proof. The return rate is 1.6%.
- When does demand for bio media peak?
- Demand peaks in Jan–Nov; the busiest month runs 4.0× the quietest.
- What does it cost to enter the bio media niche?
- Listings span $4.66–$293.23; the average listing price is $60.22 (sweet spot $15–$100). The average incumbent carries 4,341 reviews — the moat a new listing must climb.