sponge filter 75 gallon
Skip itSoft demand (-44.6% this quarter) — this niche doesn't clear our bar today.
Avg price
Great$18.83avg listing price — sweet spot $15–$100
Price range
Good$8.97–$27.59cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.5%return rate — above 6% kills the launch gate
Review moat
Good1,387.59avg incumbent reviews — the moat a new listing must climb
Conversion
Good4.0%search→purchase rate — share of searches ending in a sale
Competition
Okay61%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Brand share
Bad97%top-5 brand share — brand-locked demand
Market size
Bad$20K$20K/yr · 27K searches
Growth
Bad-44.6%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, sponge filter 75 gallon is a $20K/yr Amazon United States market (27K searches/yr). The top 5 brands hold 97% of demand. Verdict: Skip it — 33/100.
Data updated Jul 17, 2026 · scored weekly · How we score niches
sponge filter 75 gallon market data
- Units sold / yr
- 1K–2K
- avg 0–100/product
- Revenue / yr
- $24K–$28K
- units × avg price
- Launch success
- —
- 1 of 1 new (360d)
- Conversion rate
- 4.0%
- Avg BSR
- #170
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 94%
- Out of stock
- 0.0%
- Avg brand age
- 51 months
- Avg seller age
- 198 days
Competition & brand share
The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.Brands
6 falling
Sellers
10
Top-5 brand share
97%
Top 20: 100%
Top-5 click share
61%
Top 20: 100%
Open market
0%
- DVHEY47%
- AQUANEAT23%
- hygger13%
- ALEGI10%
- Pawfly4%
- AQQA3%
- Open — no brand owns it (0%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -44.6% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.6×
Top sponge filter 75 gallon search terms
- large sponge filter10K/yr
- sponge filter 75 gallon10K/yr
- sponge filter 75+ gallon7K/yr
- aquarium sponge filter 75 gallon549/yr
Top sponge filter 75 gallon 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 17 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
DVHEY 100-120 Gal Large Aquarium Sponge Filter with Air Stone and Ceramic Media 2 Pack Quiet Fish Tank Filters fit Breeding Fry Betta Shrimp Fish Tank
DVHEY$18.524.6★533 rev
DVHEY 2 Pack 60-70 Gal Aquarium Sponge Filter with Air Stone and Ceramic Filter Media Quiet Fish Tank Bio Filter for Breeding Fry Shrimp Betta Fish Tank
DVHEY$16.574.5★272 rev
AQUANEAT Aquarium Bio Sponge Filter Breeding Fry Betta Shrimp Nano Fish Tank (Large up to 60Gal)
AQUANEAT$8.984.7★9,197 rev
DVHEY 125-150 Gal Extra Large Aquarium Sponge Filter with Air Stone and Ceramic Media 4 Pack Quiet Fish Tank Sponge Filter for Breeding Fry Betta Shrimp Fish Tank
DVHEY$26.284.6★533 rev
hygger Aquarium Sponge Filter 55-125 Gallon Fish Tank Filter for Breeding Fry Shrimp Snails Betta Air-Powered Filter with Reusable Biochemical Ball Spare Sponge Foam Filter
hygger$20.394.4★398 rev
Newest
by launch date
hygger Aquarium Double Sponge Filter: Upgraded Sponge Filter with Larger Filtration Area Come with Extendable Clip 2 Spare Biochemical Sponges Bioceramic Balls for Freshwater Saltwater Tank - M
hygger$22.38130 rev
Pawfly Aquarium Large Bio Sponge Filter Quiet Betta Fry Shrimp and Small Fish Foam Filter for Fish Tank up to 60 Gallon
Pawfly$8.971,761 rev
hygger Aquarium Sponge Filter 55-125 Gallon Fish Tank Filter for Breeding Fry Shrimp Snails Betta Air-Powered Filter with Reusable Biochemical Ball Spare Sponge Foam Filter
hygger$20.39398 rev
DVHEY 100-120 Gal Large Aquarium Sponge Filter with Air Stone and Ceramic Media 2 Pack Quiet Fish Tank Filters fit Breeding Fry Betta Shrimp Fish Tank
DVHEY$18.52533 rev
DVHEY 2 Pack 60-70 Gal Aquarium Sponge Filter with Air Stone and Ceramic Filter Media Quiet Fish Tank Bio Filter for Breeding Fry Shrimp Betta Fish Tank
DVHEY$16.57272 rev
Trending
90-day click momentumPawfly Aquarium Large Bio Sponge Filter Quiet Betta Fry Shrimp and Small Fish Foam Filter for Fish Tank up to 60 Gallon
Pawfly$8.974.6★
AQUANEAT Aquarium X Large Bio Sponge Filter Breeding Fry Fish Tank (XX Large up to 220Gal)
AQUANEAT$27.594.6★
AQUANEAT Aquarium X Large Bio Sponge Filter Breeding Fry Fish Tank (X Large up to 150Gal)
AQUANEAT$19.774.6★
hygger Aquarium Double Sponge Filter: Upgraded Sponge Filter with Larger Filtration Area Come with Extendable Clip 2 Spare Biochemical Sponges Bioceramic Balls for Freshwater Saltwater Tank - M
hygger$22.384.5★
AQUANEAT Aquarium Bio Sponge Filter Breeding Fry Betta Shrimp Nano Fish Tank (Large up to 60Gal)
AQUANEAT$8.984.7★
What buyers say about sponge filter 75 gallon
What buyers praise and complain about, mined from review topics.What buyers love
“Good filter”
“But they are well made”
“has been doing a great job at keeping it clean”
“Cheap price”
“they are a perfect fit”
“This was exactly what I needed”
“the water is clearer than it has ever been”
“Works really well had it for 2 weeks And my water is very clean”
“Material is great”
“Easy 2 Use”
What buyers complain about
“Very large”
“It has never worked for me”
“Cheap Product”
“Im not sure how to even rate this filter”
“its overpriced”
“They are poorly made and poorly designed”
“It not stay under water”
“I only hope this motor can last longer than others”
“I see alot of misinformation about this sponge filter”
“The connection to the airstone is bad”
Top return reasons
Common questions
- Is sponge filter 75 gallon profitable to sell on Amazon United States?
- The niche generates $20K/yr across 17 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -44.6%. Flapen's verdict: Skip it (33/100).
- How competitive is the sponge filter 75 gallon niche?
- 6 brands and 10 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 97% of demand.
- What do buyers complain about in sponge filter 75 gallon?
- Top complaints mined from reviews: Size-Overall, Functionality-Overall, Quality-Overall. The return rate is 2.5%.
- When does demand for sponge filter 75 gallon peak?
- Demand is steady year-round — the busiest month runs 1.6× the quietest.
- What does it cost to enter the sponge filter 75 gallon niche?
- Listings span $8.97–$27.59; the average listing price is $18.83 (sweet spot $15–$100). The average incumbent carries 1,388 reviews — the moat a new listing must climb.