---
title: "Sponge Filter with Air Pump — $124K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/pet-supplies/sponge-filter-with-air-pump"
last_updated: "2026-07-21T17:29:19.210Z"
locale: en
meta:
description: "Niche score 45/100 · $124K/yr market · 116K searches/yr · $19.82 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 45/100 · $124K/yr market · 116K searches/yr · $19.82 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Sponge Filter with Air Pump — $124K/yr Amazon US Niche (2026) - Flapen"
---
# **sponge filter with air pump**
**Skip it**
Brand-locked demand (top 5 brands take 94% of clicks) — this niche doesn't clear our bar today.
Market size 28Growth 21Conversion 62Competition 58Returns 62Price range 74Avg price 87Brand share 15Review moat 22Quality gap 57
**Avg price**
**Great****$19.82**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$4.87–$43.44**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****5.4%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Good****2.5%**
return rate — above 6% kills the launch gate
**Competition**
**Good****50%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$124K**
$124K/yr · 116K searches
**Review moat**
**Bad****9,674.63**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-7.8%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****94%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, sponge filter with air pump is a $124K/yr Amazon United States market (116K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Mar–Apr–May–Jun. Verdict: Skip it — 45/100.
Data updated Jul 17, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sponge filter with air pump market data**
- **Units sold / yr**
- **6K–8K**
- avg 250–500/product
- **Revenue / yr**
- **$119K–$159K**
- units × avg price
- **Launch success**
- **—**
- 0 of 2 new (360d)
- **Conversion rate**
- **5.4%**
- **Avg BSR**
- **#50**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **78%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **52 months**
- **Avg seller age**
- **182 days**
## **Competition & brand share**
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**10 **▲rising
**Sellers**
**20**
**Top-5 brand share**
**94%**
Top 20: 100%
**Top-5 click share**
**50%**
Top 20: 92%
**Open market**
**4%**
- Pawfly47% - Tetra37% - Uniclife5% - AQQA3% - AQUANEAT2% - NICREW2% - Open — no brand owns it (4 brands, 4%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -7.8% search growth over the last 90 days.
3K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 2.9×
[**Open Trend **](https://flapen.com/research/us/pet-supplies/sponge-filter-with-air-pump/trend)
## **Top sponge filter with air pump search terms**
- **sponge filter with air pump**22K/yr-12.7%2.8% conv. - **tetra whisper air pump**21K/yr-12.6%6.0% conv. - **tetra air pump**12K/yr-7.5%4.2% conv. - **air pump for sponge filter**9K/yr-1.7%3.4% conv. - **pawfly aquarium air pump**9K/yr-1.4%7.5% conv. - **sponge filter kit**7K/yr-10.5%2.0% conv. - **pawfly**6K/yr-1.7%0.7% conv. - **sponge filter with pump**5K/yr+29.1%2.5% conv. - **sponge filter air pump**6K/yr-2.3%4.5% conv. - **whisper air pump**6K/yr-11.3%5.4% conv. [**All search terms **](https://flapen.com/research/us/pet-supplies/sponge-filter-with-air-pump/search-terms)
## **Top sponge filter with air pump 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%5%$6K10%$12K15%$19K20%$25K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 27 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Tetra Whisper Air Pump Up To 10 Gallons For Aquariums Powerful Airflow Non-UL Listed**Tetra**$15.76**4.5★44,997 rev](https://www.amazon.com/dp/B0009YJ4N6) [2**Pawfly Aquarium Air Pump with Nano Bio Sponge Filter Kit Air Control Valve Airline Tubing and Check Valve Accessories for 3-10 Gallon Small Fish Tank**Pawfly**$15.27**4.0★1,380 rev](https://www.amazon.com/dp/B09NDKDXXL) [3**Pawfly Aquarium 15-40 GPH Compact Air Pump Quiet Oxygen Aerator Pump with Air Stone/Nano Bio Sponge Filter Airline Tubing and Check Valve Accessories for 3-20 Gallon Buckets and Fish Tanks**Pawfly**$9.13**4.4★7,808 rev](https://www.amazon.com/dp/B073DWVX5P) [4**Pawfly Mini Aquarium Air Pump 15 GPH Quiet Oxygen Aerator Pump with Bracket Airline Tubing Bio Sponge Filter Air Stone Control Valve and Check Valve for 3-20 Gallon Nano Fish Tanks and Buckets**Pawfly**$15.52**4.0★1,380 rev](https://www.amazon.com/dp/B0BZC4M2YS) [5**Pawfly Aquarium Air Pump 50 GPH Fish Tank Oxygen Pump for 10-60 Gallon Fish Tanks Buckets Dual Outlet Adjustable Ultra Quiet Aerator Pump with Airline Tubing Air Stones Connectors and Check Valves**Pawfly**$10.15**4.6★1,179 rev](https://www.amazon.com/dp/B0CY296NKH)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Pawfly Aquarium Air Pump 30 GPH Fish Tank Air Pump for 5-30 Gallon Fish Tank Quiet Adjustable Oxygen Pump with Mini Sponge Filter Airline Tubing & Accessories Aerator for Fish**Pawfly**$15.09**3 rev3mo ago](https://www.amazon.com/dp/B0GV46FB72) [**Pawfly Aquarium Sponge Filter 70 GPH Fish Tank Filter 3 W Submersible Small Aquarium Filter with Water Pump Double Foams & Ceramic Balls Quiet Bio Sponge Filter for 10-40 Gallon Tanks**Pawfly**$18.92**73 rev10mo ago](https://www.amazon.com/dp/B0FQMVLJY3) [**Pawfly Nano Aquarium Air Pump Ultra Quiet Mini Bubbler for 1-15 Gallon Fish Tank and Nano Aquariums 1.3 W Portable Oxygen Aerator with Mini Sponge Filter Air Hose Airstone & Check Valve 450 ml/m**Pawfly**$18.82**90 rev1y ago](https://www.amazon.com/dp/B0FDKWMH6H) [**Pawfly 50 GPH Aquarium Air Pump for 10-60 Gallon Fish Tanks Dual Outlet Adjustable Ultra Quiet Aerator Pump with Airline Tubing Air Stones Connectors Check Valves and Nano Bio Sponge Filter**Pawfly**$14.93**29 rev1y ago](https://www.amazon.com/dp/B0DKW6CDTC) [**AQUANEAT Aquarium Electric Sponge Filter for Fish Tank with Pump with 2 Extra Sponges Middle up to 40Gal**AQUANEAT**$16.50**94 rev1y ago](https://www.amazon.com/dp/B0DJSJQHXJ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Pawfly Aquarium Air Pump 30 GPH Fish Tank Air Pump for 5-30 Gallon Fish Tank Quiet Adjustable Oxygen Pump with Mini Sponge Filter Airline Tubing & Accessories Aerator for Fish**Pawfly**$15.09**4.4★**▲ 279%**](https://www.amazon.com/dp/B0GV46FB72) [**Pawfly Aquarium Shrimp Net 2 Inch Tiny Fish Tank Net with Extendable Stainless Steel Handle Soft Round Fine Mesh for Shrimp Baby Fish Food Residue Debris Skimming**Pawfly**$4.87**4.6★**▲ 155%**](https://www.amazon.com/dp/B0CBPRY94N) [**Pawfly Aquarium Sponge Filter 70 GPH Fish Tank Filter 3 W Submersible Small Aquarium Filter with Water Pump Double Foams & Ceramic Balls Quiet Bio Sponge Filter for 10-40 Gallon Tanks**Pawfly**$18.92**4.2★**▲ 88%**](https://www.amazon.com/dp/B0FQMVLJY3) [**NICREW Nano Silent Aquarium Air Pump Black Aquarium Aerator with Accessories for Up to 10 Gallon Fish Tank Super Quiet 0.3 L/min 1.5 Watts**NICREW**$14.13**4.4★**▲ 81%**](https://www.amazon.com/dp/B09JKHPT2S) [**Pawfly Mini Aquarium Air Pump 15 GPH Quiet Oxygen Aerator Pump with Bracket Airline Tubing Bio Sponge Filter Air Stone Control Valve and Check Valve for 3-20 Gallon Nano Fish Tanks and Buckets**Pawfly**$15.52**4.0★**▲ 54%**](https://www.amazon.com/dp/B0BZC4M2YS)
**~~View all trending →~~**
## **What buyers say about sponge filter with air pump**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**21%
*“Good Deal”*
**Quality-Overall**15%
*“This is a quality net that is well made”*
**Filtration**11%
*“Good filter for the price”*
**Advertised Vs Actual Product**8%
*“As advertised”*
**Strength**7%
*“This things sturdy”*
**Size-Overall**5%
*“The size is convenient”*
**Spray/Flow**5%
*“good flow”*
**Durability**4%
*“Designed to be durable”*
**Adjustability/Rotatability/Reclining**3%
*“I love the adjustability”*
**Ease Of Use**3%
*“Easy to use”*
### **What buyers complain about **
**Durability**29%
*“Doesn't last”*
**Size-Overall**12%
*“The tubing is so short”*
**Quality-Overall**9%
*“Garbage”*
**Functionality-Overall**7%
*“DOESN’T WORK”*
**Instructions/User Manual/Troubleshooting**6%
*“Instructions are bad”*
**Filtration**5%
*“I would not consider it for filtration at all”*
**Value For Money**4%
*“Not worth the price”*
**Strength**4%
*“But not very powerful”*
**Advertised Vs Actual Product**3%
*“Not as advertised”*
**Heating**3%
*“Doesnt heat up or anything”*
### **Top return reasons **
**Size-Overall**25%
**Functionality-Overall**23%
**Advertised Vs Actual Product**10%
**Defective Material/Parts**8%
**Strength**6%
**Filtration**6%
**Value For Money**5%
**Product Condition**4%
**Compatibility-Overall**2%
**Durability**2%
## **Common questions**
- **Is sponge filter with air pump profitable to sell on Amazon United States?**
- The niche generates $124K/yr across 27 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -7.8%. Flapen's verdict: Skip it (45/100).
- **How competitive is the sponge filter with air pump niche?**
- 10 brands and 20 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 94% of demand.
- **What do buyers complain about in sponge filter with air pump?**
- Top complaints mined from reviews: Durability, Size-Overall, Quality-Overall. The return rate is 2.5%.
- **When does demand for sponge filter with air pump peak?**
- Demand peaks in Mar–Apr–May–Jun; the busiest month runs 2.9× the quietest.
- **What does it cost to enter the sponge filter with air pump niche?**
- Listings span $4.87–$43.44; the average listing price is $19.82 (sweet spot $15–$100). The average incumbent carries 9,675 reviews — the moat a new listing must climb.
## **Related niches in Pet Supplies**
- 73 [**phosphate test kit**](https://flapen.com/research/us/pet-supplies/phosphate-test-kit)$194K/yr+152.5%**Worth a look**- 73 [**flea repellent for dogs**](https://flapen.com/research/us/pet-supplies/flea-repellent-for-dogs)$1.7M/yr+136.7%**Launch it**- 73 [**kitten bottles for nursing**](https://flapen.com/research/us/pet-supplies/kitten-bottles-for-nursing)$457K/yr+166.2%**Worth a look**- 73 [**dog stake**](https://flapen.com/research/us/pet-supplies/dog-stake)$573K/yr+55.9%**Worth a look**- 73 [**bully sticks**](https://flapen.com/research/us/pet-supplies/bully-sticks)$12.4M/yr-6.9%**Worth a look**- 73 [**pet oral tartar remover spray**](https://flapen.com/research/us/pet-supplies/pet-oral-tartar-remover-spray)$100K/yr>1,000%**Worth a look**[**All Pet Supplies niches **](https://flapen.com/research/us/pet-supplies)