betta filter
Skip itSoft demand (-8.5% this quarter) — this niche doesn't clear our bar today.
Avg price
Incredible$36.52avg listing price — sweet spot $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Competition
Great37%top-5 click share — an open shelf
Returns
Okay3.5%return rate — above 6% kills the launch gate
Brand share
Okay79%top-5 brand share — brands hold most of the demand
Review moat
Okay2,541.49avg incumbent reviews — the moat a new listing must climb
Market size
Okay$181K$181K/yr · 167K searches
Conversion
Okay3.0%search→purchase rate — share of searches ending in a sale
Price range
Okay$5.91–$314.10cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-8.5%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, betta filter is a $181K/yr Amazon United States market (167K searches/yr). The top 5 brands hold 79% of demand. Verdict: Skip it — 49/100.
Data updated Jul 17, 2026 · scored weekly · How we score niches
betta filter market data
- Units sold / yr
- 5K–6K
- avg 0–100/product
- Revenue / yr
- $183K–$219K
- units × avg price
- Launch success
- 44%
- 4 of 9 new (360d)
- Conversion rate
- 3.0%
- Avg BSR
- #94
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 84%
- Out of stock
- 9.8%
- Avg brand age
- 45 months
- Avg seller age
- 167 days
Competition & brand share
Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.Brands
20 falling
Sellers
42
Top-5 brand share
79%
Top 20: 100%
Top-5 click share
37%
Top 20: 73%
Open market
18%
- NICREW57%
- Tetra6%
- DaToo6%
- Aqueon5%
- Pawfly4%
- AQUANEAT3%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -8.5% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Top betta filter search terms
- nicrew aquarium light21K/yr
- betta filter20K/yr
- nano aquarium filter18K/yr
- nicrew18K/yr
- nano tank filter12K/yr
- mini fish tank filter11K/yr
- shrimp tank filter10K/yr
- mini filter for fish tank7K/yr
- nano filter aquarium8K/yr
- 3 gallon aquarium filter7K/yr
Top betta filter 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 49 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
NICREW Slim Aquarium Filter Quiet Fish Tank HOB Filters for up to 5 Gallon Aquariums Adjustable Flow 42 GPH 3W
NICREW$12.344.1★2,763 rev
NICREW ClassicLED Plus LED Aquarium Light with Timer 21 Watts for 30 to 36 Inch Fish Tank Light Daylight and Moonlight Cycle
NICREW$41.004.6★9,021 rev
NICREW C10 24/7 LED Aquarium Light for Plants 12-18 Inches Full Spectrum Fish Tank Light with Timer Brightness Adjustable
NICREW$17.574.3★1,480 rev
NICREW C10 Plants LED Aquarium Light 18-24 in 13 Watts Full Spectrum Fish Tank Light with Timer Day and Night Cycle Brightness Adjustable
NICREW$23.884.6★1,016 rev
Tetra Whisper 4i Internal Power Filter Filtration for Aquariums Between 1 and 4 Gallons
Tetra$12.354.3★22,392 rev
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
HSIFMATE$11.5711 rev
FZONE Aquarium Filter Kit External Canister Filter 48 GPH for Small Aquariums Quiet Pump Dual-Layer Filtration Adjustable in/Out Pipes Stainless Steel Design for Tanks up to 12 Gallon
FZONE$107.903 rev
AQUASMITH Hang on Back Aquarium Filter Ultra-Quiet Small Canister Filter Multi-Layered Filtration Bottom Anti-Dry Burn Motor Extra-Large Filter (92GPHfor 5-20 Gallon)
AQUASMITH$39.59105 rev
QiQiWader Small Aquarium Filter Fish Tank Filter Suitable for 3-10 Gallon Fish Tanks 3W 80GPH with Two Modes Switching Function.
QiQiWader$16.8098 rev
FZONE HOB Aquarium Filter for Small Fish Tanks 4-Stage Hang on Back Canister Filter 106 GPH Adjustable Flow Rainfall Duckbill & Direct Flow Outlets (S)
FZONE$46.7180 rev
Trending
90-day click momentumHSIFMATE 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
HSIFMATE$11.573.6★
FZONE Aquarium Filter Kit External Canister Filter 48 GPH for Small Aquariums Quiet Pump Dual-Layer Filtration Adjustable in/Out Pipes Stainless Steel Design for Tanks up to 12 Gallon
FZONE$107.903.3★
AQUASMITH Hang on Back Aquarium Filter Ultra-Quiet Small Canister Filter Multi-Layered Filtration Bottom Anti-Dry Burn Motor Extra-Large Filter (92GPHfor 5-20 Gallon)
AQUASMITH$39.593.9★
NICREW 2.5 Gallon Nano Nature Aquarium Kit Ultra-Clear Rimless Desktop Fish Tank with Light Filter Gravel and Rock Perfect for Small Fish Shrimp or Betta Complete Version Black
NICREW$58.264.6★
VILLNO Mini Air-Powered Aquarium Sponge Filter Corner Spong Filter for 1-10Gallon Fish Tank with Multi Filter Media for Small Fish Betta Shrimp Fry
VILLNO$6.884.3★
What buyers say about betta filter
What buyers praise and complain about, mined from review topics.What buyers love
“Decent Filter”
“For the price”
“Nice lighting”
“Good quality glass”
“Small and powerful”
“It cleans well”
“Came as advertised”
“strong flow”
“It works good for water flow”
“Ease of use”
What buyers complain about
“This item broke after one week of use”
“Is not the filter”
“it's most likely not going to fit very well”
“garbage - garbage”
“Not effective”
“It leaks”
“Really didnt clean like it should”
“The instructions were terrible”
“Weak”
“did not seem to encourage a good enough water flow”
Top return reasons
Common questions
- Is betta filter profitable to sell on Amazon United States?
- The niche generates $181K/yr across 49 tracked products. 4 of 9 products launched in the last 360 days are still selling. 90-day search growth is -8.5%. Flapen's verdict: Skip it (49/100).
- How competitive is the betta filter niche?
- 20 brands and 42 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 79% of demand.
- What do buyers complain about in betta filter?
- Top complaints mined from reviews: Durability, Filtration, Size-Overall. The return rate is 3.5%.
- When does demand for betta filter peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the betta filter niche?
- Listings span $5.91–$314.10; the average listing price is $36.52 (sweet spot $15–$100). The average incumbent carries 2,541 reviews — the moat a new listing must climb.