Marineland Filter C
FailThe top 5 brands take 98% of clicks, so Marineland Filter C is a Fail.
- Flapen Score
- 45 / 100Ranks 2,799 of 3,978 Pet Supplies niches · −6 vs the category median of 5145
- Market size
- $423K/yr146K searches / yr
- 90-day growth
- -5.4%search demand this quarter
- Competition
- 64%top-5 click share · 7 brands · 33 sellers
Flapen Score
Marineland Filter C against its category
The dotted line is the Pet Supplies average. Past it, Marineland Filter C is stronger. Inside it, weaker.
Market
The Marineland Filter C market on Amazon at a glance
Shoppers on Amazon United States searched for Marineland Filter C 146K times last year and spent an estimated $423K. The top 5 brands take 98% of clicks. Flapen scores it 45 out of 100, a Fail.
01 · Demand
An estimated 6.8% of those searches ended in a purchase.
Shoppers searched for this 146K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 6.8% of those searches ended in a purchase. Searches in the last 90 days moved -5.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $423K a year.
- Searches, last 12 months
- 146K
- Growth, 90 days vs prior 90
- -5.4%
- Conversion, latest week
- 6.8%
- Market size, estimated
- $423Ka year
- Peak month
- July1.9× the quietest month
- Top search term
- marineland aquarium filter50K searches a year
02 · Price
A sale here is worth $42.70.
Listings sell for $42.70 on average, from $8.94 to $194.82. Amazon reports units sold in ranges. This niche sold 13K to 15K a year. The average listing sells 500 to 750 of them. At $42.70 that is $21K to $32K a year per listing.
- Average price
- $42.70inside the $15 to $100 sweet spot
- Price range
- $8.94–$194.82
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 13K–15K
- Units per listing a year
- 500–750
- Revenue per listing a year
- $21K–$32K
- Returns
- 2.3%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
41% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #133 within Fish & Aquatic Pets. It carries 15,320 reviews at 4.46 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 41%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #133in Fish & Aquatic Pets
- Average rating
- 4.46 starsAmazon United States average 4.42 stars
- Average reviews
- 15,320per listing
- Listings tracked
- 22
04 · Newcomers
Brands here are settling in.
The brands on the shelf have sold for 38 months on average, so the names here are settling in.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 38 months
Products
Top Marineland Filter C 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 17, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Marineland Bio-Wheel Penguin 200 GPH Power Aquarium Filter Ultra-Quiet Hang-On-Back Fish Tank Filter with Multi-Stage Filtration for Aquariums Up to 40 Gallons
- Price
- $37.91
- Rating
- 4.3/5
- Reviews
- 41,200
- Age
- 22y ago

Marineland Bio-Wheel Penguin 350 GPH Power Aquarium Filter Ultra-Quiet Hang-On-Back Fish Tank Filter with Multi-Stage Filtration for Aquariums Up to 60 Gallons
- Price
- $43.62
- Rating
- 4.3/5
- Reviews
- 41,200
- Age
- 22y ago

Marineland Penguin Bio-Wheel Replacement Filter Cartridges Rite-Size C 6 Count
- Price
- $18.66
- Rating
- 4.7/5
- Reviews
- 28,924
- Age
- 22y ago

Umlecoa 8/16/32 Pack Rite-Size C Filter Cartridges Compatible with MarineLand Penguin PRO Power Filters 275/375 & Original Penguin Power Filters 200/350 - Rite-Size C Replacement Filter Cartridges
- Price
- $19.37
- Rating
- 4.6/5
- Reviews
- 2,262
- Age
- 3y ago

Marineland Bio-Wheel Penguin 375 GPH Power Aquarium Filter Ultra-Quiet Hang-On-Back Fish Tank Filter with Multi-Stage Filtration for Aquariums Up to 75 Gallons
- Price
- $61.52
- Rating
- 4.3/5
- Reviews
- 41,200
- Age
- 6y ago
Trending
estimated 90-day click momentum
Qwakay Aquarium Filter Replacement Cartridge - 10 Pack Rite Size C Fish Tank Cartridges Compatiable with Marineland Penguin PRO Power Filters 275/375 & Original Penguin Power Filters 200/350
- Price
- $16.84
- Rating
- 4.6/5
- Reviews
- 205
- Age
- 1y ago

Marineland Bio-Wheel Penguin 100 GPH Power Aquarium Filter Ultra-Quiet Hang-On-Back Fish Tank Filter with Multi-Stage Filtration for Aquariums Up to 15 Gallons
- Price
- $26.21
- Rating
- 4.3/5
- Reviews
- 41,200
- Age
- 22y ago

Aquarium Filter Cartridge 16 Pack Rite-Size C Filter Replacement Cartridges
- Price
- $26.47
- Rating
- 4.7/5
- Reviews
- 907
- Age
- 2y ago

Marineland Bio-Wheel Penguin 375 GPH Power Aquarium Filter Ultra-Quiet Hang-On-Back Fish Tank Filter with Multi-Stage Filtration for Aquariums Up to 75 Gallons
- Price
- $61.52
- Rating
- 4.3/5
- Reviews
- 41,200
- Age
- 6y ago

Marineland Bio-Wheel Penguin 200 GPH Power Aquarium Filter Ultra-Quiet Hang-On-Back Fish Tank Filter with Multi-Stage Filtration for Aquariums Up to 40 Gallons
- Price
- $37.91
- Rating
- 4.3/5
- Reviews
- 41,200
- Age
- 22y ago
Newest
by launch date
Qwakay Aquarium Filter Replacement Cartridge - 10 Pack Rite Size C Fish Tank Cartridges Compatiable with Marineland Penguin PRO Power Filters 275/375 & Original Penguin Power Filters 200/350
- Price
- $16.84
- Rating
- 4.6/5
- Reviews
- 205
- Age
- 1y ago

16 Pack Rite Size C Aquarium Filter Cartridges Compatible with Marineland Penguin PRO Power Filters 275/375 & Original Penguin Power Filters 200/350 EZ Change #3 Replacement Filter Cartridges
- Price
- $29.90
- Rating
- 4.8/5
- Reviews
- 121
- Age
- 1y ago

Trdzi Aquarium Fish Tank Filters Compatible with Marineland Penguin 350 200 Hang On Filters Replacement for Penguin BioWheel 350B 200B Assembly Biowheel Part PRBW2350B 2 Pack
- Price
- $14.17
- Rating
- 4.3/5
- Reviews
- 162
- Age
- 1y ago

MarineLand Rite Size Aquarium Filter Cartridge Bundles (Rite Size C 24pk)
- Price
- $59.95
- Rating
- 5.0/5
- Reviews
- 30
- Age
- 2y ago

pewyoke Aquarium Filter Cartridge 4 Pack Rite-Size C Filter Replacement Cartridges
- Price
- $8.94
- Rating
- 4.7/5
- Reviews
- 907
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 64% of clicks. Leaders hold, but buyers still shop past them.
Brands
7 rising
Sellers
33
Est. top-5 brand share
98%
Top 20: 100%
Est. top-5 click share
64%
Top 20: 98%
Open market
1%
- MarineLand75%
- Umlecoa13%
- Qwakay5%
- xbbwmrs3%
- pewyoke2%
- Trdzi1%
- Open — no brand owns it (1 brand, 1%)
Demand
Marineland Filter C search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.9×
Search terms
Top Marineland Filter C search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- marineland aquarium filter50K/yr
- marineland filter23K/yr
- marineland rite size c19K/yr
- marineland13K/yr
- rite size c filter cartridges12K/yr
- marineland penguin 3505K/yr
- bio wheel aquarium filter5K/yr
- marineland biowheel4K/yr
- marineland filters5K/yr
- marine land fish tank filters3K/yr
Reviews and returns
What reviews say buyers love and hate about Marineland Filter C
We read the reviews and the return reasons for every product selling here.
“Failed after 3 months”
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 Marineland Filter C 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









