sponge filter with air pump
Skip itBrand-locked demand (top 5 brands take 94% of clicks) — this niche doesn't clear our bar today.
Avg price
Great$19.82avg listing price — sweet spot $15–$100
Price range
Good$4.87–$43.44cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good5.4%search→purchase rate — share of searches ending in a sale
Returns
Good2.5%return rate — above 6% kills the launch gate
Competition
Good50%top-5 click share — leaders hold, buyers still browse
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Market size
Okay$124K$124K/yr · 116K searches
Review moat
Bad9,674.63avg incumbent reviews — the moat a new listing must climb
Growth
Bad-7.8%90-day search growth — must beat 0% to launch
Brand share
Bad94%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
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.Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 2.9×
Top sponge filter with air pump search terms
- sponge filter with air pump22K/yr
- tetra whisper air pump21K/yr
- tetra air pump12K/yr
- air pump for sponge filter9K/yr
- pawfly aquarium air pump9K/yr
- sponge filter kit7K/yr
- pawfly6K/yr
- sponge filter with pump5K/yr
- sponge filter air pump6K/yr
- whisper air pump6K/yr
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.
All 27 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Tetra Whisper Air Pump Up To 10 Gallons For Aquariums Powerful Airflow Non-UL Listed
Tetra$15.764.5★44,997 rev
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$15.274.0★1,380 rev
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$9.134.4★7,808 rev
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$15.524.0★1,380 rev
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$10.154.6★1,179 rev
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$15.093 rev
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$18.9273 rev
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$18.8290 rev
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$14.9329 rev
AQUANEAT Aquarium Electric Sponge Filter for Fish Tank with Pump with 2 Extra Sponges Middle up to 40Gal
AQUANEAT$16.5094 rev
Trending
90-day click momentumPawfly 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$15.094.4★
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$4.874.6★
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$18.924.2★
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$14.134.4★
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$15.524.0★
What buyers say about sponge filter with air pump
What buyers praise and complain about, mined from review topics.What buyers love
“Good Deal”
“This is a quality net that is well made”
“Good filter for the price”
“As advertised”
“This things sturdy”
“The size is convenient”
“good flow”
“Designed to be durable”
“I love the adjustability”
“Easy to use”
What buyers complain about
“Doesn't last”
“The tubing is so short”
“Garbage”
“DOESN’T WORK”
“Instructions are bad”
“I would not consider it for filtration at all”
“Not worth the price”
“But not very powerful”
“Not as advertised”
“Doesnt heat up or anything”
Top return reasons
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.