---
title: "Sponge Filter 75 Gallon — $20K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/pet-supplies/sponge-filter-75-gallon"
last_updated: "2026-07-22T21:30:16.158Z"
locale: en
meta:
description: "Niche score 33/100 · $20K/yr market · 27K searches/yr · $18.83 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 33/100 · $20K/yr market · 27K searches/yr · $18.83 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Sponge Filter 75 Gallon — $20K/yr Amazon US Niche (2026) - Flapen"
---
# **sponge filter 75 gallon**
**Skip it**
Soft demand (-44.6% this quarter) — this niche doesn't clear our bar today.
Market size 5Growth 3Conversion 50Competition 39Returns 64Price range 68Avg price 85Brand share 7Review moat 53Quality gap 32
**Avg price**
**Great****$18.83**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$8.97–$27.59**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Good****2.5%**
return rate — above 6% kills the launch gate
**Review moat**
**Good****1,387.59**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****4.0%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Okay****61%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****97%**
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 ~~](https://flapen.com/research/methodology)
## **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.
1K600Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/pet-supplies/sponge-filter-75-gallon/trend)
## **Top sponge filter 75 gallon search terms**
- **large sponge filter**10K/yr+1.4%3.8% conv. - **sponge filter 75 gallon**10K/yr-65.3%4.5% conv. - **sponge filter 75+ gallon**7K/yr-80.4%4.0% conv. - **aquarium sponge filter 75 gallon**549/yr-68.3%4.4% conv. [**All search terms **](https://flapen.com/research/us/pet-supplies/sponge-filter-75-gallon/search-terms)
## **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.
0%10%$2K20%$4K30%$6K40%$8K1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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**$18.52**4.6★533 rev](https://www.amazon.com/dp/B0CNXMVXYW) [2**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**$16.57**4.5★272 rev](https://www.amazon.com/dp/B0CNXNX23Z) [3**AQUANEAT Aquarium Bio Sponge Filter Breeding Fry Betta Shrimp Nano Fish Tank (Large up to 60Gal)**AQUANEAT**$8.98**4.7★9,197 rev](https://www.amazon.com/dp/B071HVZVMP) [4**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**$26.28**4.6★533 rev](https://www.amazon.com/dp/B0CNXHC2HT) [5**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**$20.39**4.4★398 rev](https://www.amazon.com/dp/B0CSFRMHDK)
**~~View all top sellers →~~**
### **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**$22.38**130 rev12mo ago](https://www.amazon.com/dp/B0FJCZJ3C3) [**Pawfly Aquarium Large Bio Sponge Filter Quiet Betta Fry Shrimp and Small Fish Foam Filter for Fish Tank up to 60 Gallon**Pawfly**$8.97**1,761 rev1y ago](https://www.amazon.com/dp/B098367LTZ) [**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**$20.39**398 rev2y ago](https://www.amazon.com/dp/B0CSFRMHDK) [**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**$18.52**533 rev2y ago](https://www.amazon.com/dp/B0CNXMVXYW) [**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**$16.57**272 rev2y ago](https://www.amazon.com/dp/B0CNXNX23Z)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Pawfly Aquarium Large Bio Sponge Filter Quiet Betta Fry Shrimp and Small Fish Foam Filter for Fish Tank up to 60 Gallon**Pawfly**$8.97**4.6★**▲ 87%**](https://www.amazon.com/dp/B098367LTZ) [**AQUANEAT Aquarium X Large Bio Sponge Filter Breeding Fry Fish Tank (XX Large up to 220Gal)**AQUANEAT**$27.59**4.6★**▲ 78%**](https://www.amazon.com/dp/B078H9D65M) [**AQUANEAT Aquarium X Large Bio Sponge Filter Breeding Fry Fish Tank (X Large up to 150Gal)**AQUANEAT**$19.77**4.6★**▲ 77%**](https://www.amazon.com/dp/B08HVNXH2Z) [**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**$22.38**4.5★**▲ 61%**](https://www.amazon.com/dp/B0FJCZJ3C3) [**AQUANEAT Aquarium Bio Sponge Filter Breeding Fry Betta Shrimp Nano Fish Tank (Large up to 60Gal)**AQUANEAT**$8.98**4.7★**▲ 32%**](https://www.amazon.com/dp/B071HVZVMP)
**~~View all trending →~~**
## **What buyers say about sponge filter 75 gallon**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**40%
*“Good filter”*
**Quality-Overall**10%
*“But they are well made”*
**Ease Of Cleaning**10%
*“has been doing a great job at keeping it clean”*
**Value For Money**8%
*“Cheap price”*
**Size-Overall**7%
*“they are a perfect fit”*
**Advertised Vs Actual Product**5%
*“This was exactly what I needed”*
**Water Flow**3%
*“the water is clearer than it has ever been”*
**Water Resistance**2%
*“Works really well had it for 2 weeks And my water is very clean”*
**Material Quality**2%
*“Material is great”*
**Ease Of Use**2%
*“Easy 2 Use”*
### **What buyers complain about **
**Size-Overall**21%
*“Very large”*
**Functionality-Overall**17%
*“It has never worked for me”*
**Quality-Overall**11%
*“Cheap Product”*
**Filtration**9%
*“Im not sure how to even rate this filter”*
**Value For Money**5%
*“its overpriced”*
**Design-Overall**4%
*“They are poorly made and poorly designed”*
**Water Resistance**3%
*“It not stay under water”*
**Durability**3%
*“I only hope this motor can last longer than others”*
**Advertised Vs Actual Product**3%
*“I see alot of misinformation about this sponge filter”*
**Connectivity-Overall**3%
*“The connection to the airstone is bad”*
### **Top return reasons **
**Size-Overall**64%
**Filtration**15%
**Advertised Vs Actual Product**4%
**Functionality-Overall**3%
**Defective Material/Parts**3%
**Value For Money**3%
**Product Condition**2%
**Material Quality**1%
**Water Resistance**1%
**Compatibility-Overall**1%
## **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.
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