Bio Balls
MaybeAn estimated 0.8% of orders come back. But shoppers spend an estimated $143K a year here, so Bio Balls is a Maybe.
- Flapen Score
- 58 / 100Top 39% of 8,839 Patio, Lawn & Garden niches · +2 vs the category median of 5658
- Market size
- $143K/yr86K searches / yr
- 90-day growth
- +32.3%search demand this quarter
- Competition
- 56%top-5 click share · 14 brands · 33 sellers
Flapen Score
Bio Balls against its category
The dotted line is the Patio, Lawn & Garden average. Past it, Bio Balls is stronger. Inside it, weaker.
Market
The Bio Balls market on Amazon at a glance
Shoppers on Amazon United States searched for Bio Balls 86K times last year and spent an estimated $143K. The top 5 brands take 77% of clicks. Demand peaks in May–Jun. Flapen scores it 58 out of 100, a Maybe.
01 · Demand
An estimated 7.0% of those searches ended in a purchase.
Shoppers searched for this 86K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 7.0% of those searches ended in a purchase. Searches in the last 90 days moved +32.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated $143K a year.
- Searches, last 12 months
- 86K
- Growth, 90 days vs prior 90
- +32.3%
- Conversion, latest week
- 7.0%
- Market size, estimated
- $143Ka year
- Peak month
- May2.2× the quietest month
- Top search term
- bio balls33K searches a year
02 · Price
A sale here is worth $23.84.
Listings sell for $23.84 on average, from $4.03 to $118.16. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 100 to 250 of them. At $23.84 that is $2K to $6K a year per listing.
- Average price
- $23.84inside the $15 to $100 sweet spot
- Price range
- $4.03–$118.16
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 6K–8K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $2K–$6K
- Returns
- 0.8%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
86% of listings pay for placement with sponsored ads. 95% ship with Prime. On an average day, 3.6% of listings are out of stock. The average listing ranks #365 within Water Gardens & Ponds. It carries 912 reviews at 4.51 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 86%
- Prime listings
- 95%
- Out of stock, average day
- 3.6%
- Average rank
- #365in Water Gardens & Ponds
- Average rating
- 4.51 starsAmazon United States average 4.42 stars
- Average reviews
- 912per listing
- Listings tracked
- 21
04 · Newcomers
2 of last year's 3 launches cleared the first-year sales bar.
3 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 58 months on average, so the names here are settling in.
- Launched, last 12 months
- 3
- Successful launches
- 2Amazon's first-year sales bar
- Average brand age
- 58 months
Products
Top Bio Balls 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 16, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Aquatic Experts 1.5 Large Bio Balls for Ponds Biological Filter Media for Waterfalls & Outdoor Pond Filters Treats Up to 330 Gallons (100 Count + 10 x 12 Mesh Bag)
- Price
- $24.82
- Rating
- 4.5/5
- Reviews
- 540
- Age
- 8y ago

Marineland Bio-Filter Balls 90 Count Support Biological Aquarium Filtration Rite-Size S T and X Fit All C-Series and Magniflow Canister Filters
- Price
- $4.03
- Rating
- 4.6/5
- Reviews
- 2,589
- Age
- 20y ago

Aquatic Experts 1.5 Large Bio Balls for Ponds Biological Filter Media for Waterfalls & Outdoor Pond Filters Treats Up to 1 000 Gallons (300 Count + 14 x 20 Mesh Bag)
- Price
- $44.20
- Rating
- 4.6/5
- Reviews
- 1,232
- Age
- 8y ago

RAINFLOW Aquarium Bio Balls - 100pcs Black Bulk Sump Filter Media with Sponge Biological Filtration Media for Koi Pond Fish Tank Canister Air Pump
- Price
- $7.84
- Rating
- 4.3/5
- Reviews
- 68
- Age
- 11mo ago

AQUANEAT 1.25 Large Bio Balls for Pond Filter Koi Pond Aquarium Fish Tank Sump Filter Media with Free Media Bag 300pcs
- Price
- $25.77
- Rating
- 4.7/5
- Reviews
- 298
- Age
- 7y ago
Trending
estimated 90-day click momentum
Natural Pond Care Ball Easy Drop-in Maintenance for Outdoor Ponds and Water Features Suitable for Fish & Plants Up to 2500 Gallons 4 Week Use
- Price
- $20.31
- Rating
- 3.6/5
- Reviews
- 103
- Age
- 4mo ago

Aquatic Experts Mesh Media Bags Large Hole 1/8 Mesh with Rustproof Plastic Zipper for Bio Balls & Large Filter Media (7 x 9 2 Pack)
- Price
- $11.79
- Rating
- 4.5/5
- Reviews
- 243
- Age
- 4y ago

Aquatic Experts 1.5 Large Bio Balls for Ponds Biological Filter Media for Waterfalls & Outdoor Pond Filters Treats Up to 3 000 Gallons (900 Count + Three 14 x 20 Mesh Bags)
- Price
- $118.16
- Rating
- 4.7/5
- Reviews
- 47
- Age
- 5y ago

VIHOSE 20 Count 3 Inch Black Large Bio Balls Media Filter Durable Fish Pond Filter Media with Sponge Biological Filtration Mediums for Pond Aquarium Fish Tanks Filters with 12 x 16 Mesh Bag
- Price
- $28.57
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 6mo ago

Aquatic Experts 1.5 Large Bio Balls for Ponds Biological Filter Media for Waterfalls & Outdoor Pond Filters Treats Up to 330 Gallons (100 Count + 10 x 12 Mesh Bag)
- Price
- $24.82
- Rating
- 4.5/5
- Reviews
- 540
- Age
- 8y ago
Newest
by launch date
Natural Pond Care Ball Easy Drop-in Maintenance for Outdoor Ponds and Water Features Suitable for Fish & Plants Up to 2500 Gallons 4 Week Use
- Price
- $20.31
- Rating
- 3.6/5
- Reviews
- 103
- Age
- 4mo ago

VIHOSE 20 Count 3 Inch Black Large Bio Balls Media Filter Durable Fish Pond Filter Media with Sponge Biological Filtration Mediums for Pond Aquarium Fish Tanks Filters with 12 x 16 Mesh Bag
- Price
- $28.57
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 6mo ago

RAINFLOW Aquarium Bio Balls - 100pcs Black Bulk Sump Filter Media with Sponge Biological Filtration Media for Koi Pond Fish Tank Canister Air Pump
- Price
- $7.84
- Rating
- 4.3/5
- Reviews
- 68
- Age
- 11mo ago

AOQIVIS 500 Pieces Black Bio Balls 1.02 Inch Internal Bioballs Filter Media for Aquarium Filter&Pond Filter with 5 Pieces Aquarium Filter Media Mesh Bags
- Price
- $29.95
- Rating
- 4.8/5
- Reviews
- 19
- Age
- 1y ago

Sukh Ceramic Bio Balls - Fish Tank Sphere Filter Media Nano-Tech Bio-Spheres Bio Media for Aquarium Fish Tank Sump Pond Freshwater Canister Filter and Koi Ponds 15oz
- Price
- $7.20
- Rating
- 4.6/5
- Reviews
- 271
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 56% of clicks. Leaders hold, but buyers still shop past them.
Brands
14 falling
Sellers
33
Est. top-5 brand share
77%
Top 20: 100%
Est. top-5 click share
56%
Top 20: 100%
Open market
17%
- Aquatic Experts34%
- AQUANEAT18%
- MarineLand12%
- RAINFLOW8%
- Aquarium Masters6%
- Sukh6%
- Open — no brand owns it (8 brands, 17%)
Demand
Bio Balls search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: May, Jun · busiest ÷ quietest = 2.2×
Search terms
Top Bio Balls search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- bio balls33K/yr
- bio balls for pond filter13K/yr
- bio balls for aquarium filter16K/yr
- pond bio balls4K/yr
- bioballs5K/yr
- bioballs for pond3K/yr
- bioballs filter media4K/yr
- bio balls for pond3K/yr
- aquarium bio balls5K/yr
Reviews and returns
What reviews say buyers love and hate about Bio Balls
We read the reviews and the return reasons for every product selling here.
“Didnt work as expected”
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.
20 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 Bio Balls 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









