1 Gallon Fish Tank Filter
FailThe top 5 brands take 96% of clicks, so 1 Gallon Fish Tank Filter is a Fail.
- Flapen Score
- 47 / 100Ranks 2,474 of 3,978 Pet Supplies niches · −4 vs the category median of 5147
- Market size
- $385K/yr179K searches / yr
- 90-day growth
- -9.4%search demand this quarter
- Competition
- 52%top-5 click share · 7 brands · 21 sellers
Flapen Score
1 Gallon Fish Tank Filter against its category
The dotted line is the Pet Supplies average. Past it, 1 Gallon Fish Tank Filter is stronger. Inside it, weaker.
Market
The 1 Gallon Fish Tank Filter market on Amazon at a glance
Shoppers on Amazon United States searched for 1 Gallon Fish Tank Filter 179K times last year and spent an estimated $385K. The top 5 brands take 96% of clicks. Flapen scores it 47 out of 100, a Fail.
01 · Demand
An estimated 4.4% of those searches ended in a purchase.
Shoppers searched for this 179K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 4.4% of those searches ended in a purchase. Searches in the last 90 days moved -9.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $385K a year.
- Searches, last 12 months
- 179K
- Growth, 90 days vs prior 90
- -9.4%
- Conversion, latest week
- 4.4%
- Market size, estimated
- $385Ka year
- Peak month
- January1.5× the quietest month
- Top search term
- nicrew aquarium light21K searches a year
02 · Price
A sale here is worth $48.69.
Listings sell for $48.69 on average, from $7.75 to $314.10. Amazon reports units sold in ranges. This niche sold 8K to 10K a year. The average listing sells 250 to 500 of them. At $48.69 that is $12K to $24K a year per listing.
- Average price
- $48.69inside the $15 to $100 sweet spot
- Price range
- $7.75–$314.10
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 8K–10K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $12K–$24K
- Returns
- 2.8%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
76% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 8.7% of listings are out of stock. The average listing ranks #76 within Fish & Aquatic Pets. It carries 3,003 reviews at 4.28 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 76%
- Prime listings
- 100%
- Out of stock, average day
- 8.7%
- Average rank
- #76in Fish & Aquatic Pets
- Average rating
- 4.28 starsAmazon United States average 4.42 stars
- Average reviews
- 3,003per listing
- Listings tracked
- 25
04 · Newcomers
0 of last year's 2 launches cleared the first-year sales bar.
2 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 47 months on average, so the names here are settling in.
- Launched, last 12 months
- 2
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 47 months
Products
Top 1 Gallon Fish Tank Filter 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
NICREW Slim Aquarium Filter Quiet Fish Tank HOB Filters for up to 5 Gallon Aquariums Adjustable Flow 42 GPH 3W
- Price
- $12.34
- Rating
- 4.1/5
- Reviews
- 2,763
- Age
- 2y ago

NICREW ClassicLED Plus LED Aquarium Light with Timer 21 Watts for 30 to 36 Inch Fish Tank Light Daylight and Moonlight Cycle
- Price
- $41.00
- Rating
- 4.6/5
- Reviews
- 9,021
- Age
- 8y ago

Tetra Whisper 4i Internal Power Filter Filtration for Aquariums Between 1 and 4 Gallons
- Price
- $12.35
- Rating
- 4.3/5
- Reviews
- 22,392
- Age
- 7y ago

NICREW C10 24/7 LED Aquarium Light for Plants 12-18 Inches Full Spectrum Fish Tank Light with Timer Brightness Adjustable
- Price
- $17.57
- Rating
- 4.3/5
- Reviews
- 1,480
- Age
- 3y ago

NICREW C10 Plants LED Aquarium Light 18-24 in 13 Watts Full Spectrum Fish Tank Light with Timer Day and Night Cycle Brightness Adjustable
- Price
- $23.88
- Rating
- 4.6/5
- Reviews
- 1,016
- Age
- 3y ago
Trending
estimated 90-day click momentum
HSIFMATE Small Fish Tank Filter Hang on Filter for 1-5 Gal Nano Aquarium Ultra Quiet Power Filter with Aeration & Oil Skimmer Adjustable Flow for Betta Shrimp Tank
- Price
- $11.57
- Rating
- 3.6/5
- Reviews
- 11
- Age
- 2mo ago

SmtaqX 8 Pack Aquarium Filter Cartridges Compatible with NICREW Slim Filter Fish Tank Filter Cartridges Replacement
- Price
- $8.90
- Rating
- 4.3/5
- Reviews
- 41
- Age
- 1y ago

Novique HOB Slim Aquarium Filter for Up to 5 Gallon Tank Ultra-Quiet Fish Tank Power Filter Flow Adjustable Suitable for Saltwater and Freshwater 42 GPH 3W
- Price
- $8.96
- Rating
- 3.9/5
- Reviews
- 119
- Age
- 11mo ago

NICREW C10 24/7 LED Aquarium Light for Plants 12-18 Inches Full Spectrum Fish Tank Light with Timer Brightness Adjustable
- Price
- $17.57
- Rating
- 4.3/5
- Reviews
- 1,480
- Age
- 3y ago

DaToo Aquarium Hang On Filter Small Fish Tank Hanging Filter Power Waterfall Filtration System
- Price
- $7.97
- Rating
- 3.8/5
- Reviews
- 1,087
- Age
- 5y ago
Newest
by launch date
HSIFMATE Small Fish Tank Filter Hang on Filter for 1-5 Gal Nano Aquarium Ultra Quiet Power Filter with Aeration & Oil Skimmer Adjustable Flow for Betta Shrimp Tank
- Price
- $11.57
- Rating
- 3.6/5
- Reviews
- 11
- Age
- 2mo ago

Novique HOB Slim Aquarium Filter for Up to 5 Gallon Tank Ultra-Quiet Fish Tank Power Filter Flow Adjustable Suitable for Saltwater and Freshwater 42 GPH 3W
- Price
- $8.96
- Rating
- 3.9/5
- Reviews
- 119
- Age
- 11mo ago

NICREW NavaReef 65 Reef LED Light 65W Reef Aquarium Lighting for Soft/LPS Corals and Saltwater Fish Tanks Built-in Timer Blue Focused Spectrum
- Price
- $95.60
- Rating
- 4.6/5
- Reviews
- 146
- Age
- 1y ago

SmtaqX 8 Pack Aquarium Filter Cartridges Compatible with NICREW Slim Filter Fish Tank Filter Cartridges Replacement
- Price
- $8.90
- Rating
- 4.3/5
- Reviews
- 41
- Age
- 1y ago

NICREW HyperReef 200 Gen 2 Reef LED Light 200W Reef Aquarium Lighting for SPS LPS Corals and Saltwater Fish Tanks Enhanced Violet and Blue Spectrum Wide Angle Lens 5 Channels Fully Programmable
- Price
- $314.10
- Rating
- 4.4/5
- Reviews
- 258
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 52% of clicks. Leaders hold, but buyers still shop past them.
Brands
7 falling
Sellers
21
Est. top-5 brand share
96%
Top 20: 100%
Est. top-5 click share
52%
Top 20: 92%
Open market
2%
- NICREW77%
- Tetra7%
- DaToo6%
- Aqueon3%
- Novique2%
- HSIFMATE2%
- Open — no brand owns it (1 brand, 2%)
Demand
1 Gallon Fish Tank Filter search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.5×
Search terms
Top 1 Gallon Fish Tank Filter search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- nicrew aquarium light21K/yr
- nano aquarium filter18K/yr
- nicrew18K/yr
- nicrew filter14K/yr
- 1 gallon fish tank filter15K/yr
- nano tank filter12K/yr
- shrimp filter10K/yr
- nano filter aquarium8K/yr
- nicrew led aquarium light23K/yr
- beta filter6K/yr
Reviews and returns
What reviews say buyers love and hate about 1 Gallon Fish Tank Filter
We read the reviews and the return reasons for every product selling here.
“Breaks easily”
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.
17 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 1 Gallon Fish Tank Filter 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









