---
title: "Protein Skimmer — $276K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/pet-supplies/protein-skimmer"
last_updated: "2026-07-22T21:32:37.776Z"
locale: en
meta:
description: "Niche score 52/100 · $276K/yr market · 199K searches/yr. Soft demand (-22.5% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · $276K/yr market · 199K searches/yr. Soft demand (-22.5% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Protein Skimmer — $276K/yr Amazon US Niche (2026) - Flapen"
---
# **protein skimmer**
**Worth a look**
Shows beatable incumbent ratings (3.9★), but soft demand (-22.5% this quarter) keeps it on the watch list.
Market size 50Growth 14Conversion 17Competition 75Returns 17Price range 30Avg price 73Brand share 85Review moat 90Quality gap 96
**Quality gap**
**Incredible****3.9★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Great****207.12**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Great****50%**
top-5 brand share — no brand owns this niche
**Competition**
**Great****40%**
top-5 click share — an open shelf
**Avg price**
**Good****$104.83**
avg listing price — sweet spot $15–$100
**Market size**
**Good****$276K**
$276K/yr · 199K searches
**Price range**
**Okay****$11.77–$297.15**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Bad****1.3%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Bad****7.9%**
return rate — above 6% kills the launch gate
**Growth**
**Bad****-22.5%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, protein skimmer is a $276K/yr Amazon United States market (199K searches/yr). The top 5 brands hold 50% of demand. Verdict: Worth a look — 52/100.
Data updated Jul 17, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **protein skimmer market data**
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$210K–$262K**
- units × avg price
- **Launch success**
- **33%**
- 3 of 9 new (360d)
- **Conversion rate**
- **1.3%**
- **Avg BSR**
- **#463**
- **Page quality**
- **0%**
- **Prime**
- **98%**
- **Sponsored**
- **72%**
- **Out of stock**
- **15.4%**
- **Avg brand age**
- **65 months**
- **Avg seller age**
- **180 days**
## **Competition & brand share**
Clicks spread well past the top 5 (40% combined) — an open shelf where new products get seen.
**Brands**
**27 **—flat
**Sellers**
**57**
**Top-5 brand share**
**50%**
Top 20: 95%
**Top-5 click share**
**40%**
Top 20: 78%
**Open market**
**43%**
- IOAOI17% - AQQA11% - MagTool9% - Bubble Magus7% - Coralife6% - Aquatop6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -22.5% search growth over the last 90 days.
5K3KHoliday '24Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/pet-supplies/protein-skimmer/trend)
## **Top protein skimmer search terms**
- **protein skimmer**77K/yr-22.5%0.9% conv. - **protein skimmers for saltwater aquariums**46K/yr-16.2%1.2% conv. - **nano protein skimmer**18K/yr-28.2%1.2% conv. - **hang on back protein skimmer**11K/yr-15.6%0.9% conv. - **hob protein skimmer**10K/yr-20.8%0.7% conv. - **nano skimmer**7K/yr-23.0%1.1% conv. - **protein skimmer hang on back**6K/yr-25.7%0.5% conv. - **aquarium protein skimmer**6K/yr-12.3%1.2% conv. - **bubble magus protein skimmer**5K/yr-26.2%1.3% conv. - **mini protein skimmer**4K/yr-21.5%0.8% conv. [**All search terms **](https://flapen.com/research/us/pet-supplies/protein-skimmer/search-terms)
## **Top protein skimmer 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%3%$8K6%$17K9%$25K12%$33K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)3 products missing review or click data not plotted
All 43 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**AQQA Aquarium Protein Skimmer for Saltwater Fish Tank Nano Surface Skimmer Filter Pump 79GPH Ultra Quiet for 50-80 Gallon Tank**AQQA**$35.14**3.4★68 rev](https://www.amazon.com/dp/B0FCFWJ9C7) [2**IOAOI Protein Skimmers for Saltwater Aquariums Hang On Protein Skimmer for Fish Tanks up to 80 Gallons DC Pinwheel Pump with Controller Not for Rimmed Tank**IOAOI**$97.34**4.4★230 rev](https://www.amazon.com/dp/B09ZQCWHPM) [3**Bubble Magus MiniQ Hang on Back Aquarium Filter Internal Hang on Back Canister Filter Nano Protein Skimmer Surface Skimmer Aquarium/Betta Pool Skimmer for coralife Fish Tank Saltwater Aquariums**Bubble Magus**$77.43**3.9★47 rev](https://www.amazon.com/dp/B0D928LBJZ) [4**Protein Skimmer for 50-100 Gallon Saltwater Aquarium DC Pump with Adjustable Flow Control Ultra Silent Operation (35dB) Compact Nano-Scale Design for Reef Tank Saltwater Tank**NJSZBDZJ**$130.82**4.7★8 rev](https://www.amazon.com/dp/B0G6FD7Z8J) [5**OASE CrystalSkim 350 Surface Skimmer for Freshwater and Marine Aquariums Compact Internal Filter for Film Oil and Debris Removal Quiet Adjustable Flow Shrimp-Safe for Tanks up to 92 Gal / 350 L**OASE**$33.16**4.1★768 rev](https://www.amazon.com/dp/B0BFFY1ZGF)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**VEVOR Protein Skimmer for 30-80 Gal Saltwater Aquarium Hang On with DC Pump Protein Skimmer with DC Pinwheel Pump Adjustable Control for 30-80 Gal Medium Saltwater Aquariums & Reef Tank Fish Tank**VEVOR**$70.42**0 rev3w ago](https://www.amazon.com/dp/B0H6FFTXGV) [**MagTool Aquarium in-Sump DC Protein Skimmer with Controllable DC Pinwheel Pump for Up to 50-100 Gal Reef Tank (N100 Plus)**MagTool**$162.16**80 rev4w ago](https://www.amazon.com/dp/B0H5V8DWJX) [**Seawater Aquarium Protein Skimmer Suitable for Aquariums of 80 gallons or Less Also Applicable to Saltwater Coral Tanks. Built-in wall-Mounted Type**LANDOUJIAO**$37.39**0 rev1mo ago](https://www.amazon.com/dp/B0H5KBLHPJ) [**LANDOUJIAO Fish Tank Protein Skimmer Protein Skimmers for Saltwater Equipped with a DC Pump with Adjustable Flow Control Protein Skimmer the Maximum Capacity of the Aquarium can Reach 25 gallons.**LANDOUJIAO**$40.77**0 rev3mo ago](https://www.amazon.com/dp/B0GVZL24MQ) [**Hygger CO2 Aquarium Surface Skimmer 96 GPH Flow Rate Ideal for Freshwater & Saltwater Compatible 5W Efficient Waste Removal**Hygger CO2**$25.47**60 rev4mo ago](https://www.amazon.com/dp/B0GCZHSND4)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**VEVOR Protein Skimmer for 30-80 Gal Saltwater Aquarium Hang On with DC Pump Protein Skimmer with DC Pinwheel Pump Adjustable Control for 30-80 Gal Medium Saltwater Aquariums & Reef Tank Fish Tank**VEVOR**$70.42**0.0★**▲ 335%**](https://www.amazon.com/dp/B0H6FFTXGV) [**Seawater Aquarium Protein Skimmer Suitable for Aquariums of 80 gallons or Less Also Applicable to Saltwater Coral Tanks. Built-in wall-Mounted Type**LANDOUJIAO**$37.39**0.0★**▲ 330%**](https://www.amazon.com/dp/B0H5KBLHPJ) [**IOAOI Nano Protein Skimmer for Saltwater Aquariums DC Pinwheel Pump for 20 Gals Fish Tank Hang On Internal**IOAOI**$78.35**4.4★**▲ 325%**](https://www.amazon.com/dp/B0GKRQMQS1) [**MagTool Aquarium in-Sump DC Protein Skimmer with Controllable DC Pinwheel Pump for Up to 50-100 Gal Reef Tank (N100 Plus)**MagTool**$162.16**4.3★**▲ 320%**](https://www.amazon.com/dp/B0H5V8DWJX) [**LANDOUJIAO Fish Tank Protein Skimmer Protein Skimmers for Saltwater Equipped with a DC Pump with Adjustable Flow Control Protein Skimmer the Maximum Capacity of the Aquarium can Reach 25 gallons.**LANDOUJIAO**$40.77**0.0★**▲ 319%**](https://www.amazon.com/dp/B0GVZL24MQ)
**~~View all trending →~~**
## **What buyers say about protein skimmer**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**16%
*“Good for the money”*
**Quality-Overall**16%
*“The build quality also seems solid for the price”*
**Ease Of Cleaning**10%
*“Easy to clean”*
**Ease Of Use**8%
*“The collection cup is easy to remove”*
**Size-Overall**6%
*“I love the size”*
**Advertised Vs Actual Product**4%
*“Better than expected”*
**Design-Overall**4%
*“a well thought out design”*
**Filtration**3%
*“Incredible filter for the price”*
**Durability**3%
*“it runs well”*
**Strength**2%
*“Overall, powerful pump”*
### **What buyers complain about **
**Durability**22%
*“Died after 1 week”*
**Functionality-Overall**11%
*“Never worked properly”*
**Quality-Overall**8%
*“Not high quality”*
**Size-Overall**5%
*“Small”*
**Instructions/User Manual/Troubleshooting**4%
*“The instructions are awful”*
**Value For Money**4%
*“too much hassle for this price point”*
**Ease Of Cleaning**4%
*“It wasnt evern cleaned”*
**Advertised Vs Actual Product**3%
*“FALSE ADVERTISEMENT”*
**Design-Overall**3%
*“so not very good design”*
**Water Flow**3%
*“While I was at work today, the pump motor failed and shifted out”*
### **Top return reasons **
**Size-Overall**33%
**Functionality-Overall**23%
**Defective Material/Parts**10%
**Advertised Vs Actual Product**6%
**Product Condition**5%
**Compatibility-Overall**4%
**Leak-Proof**4%
**Durability**3%
**Filtration**2%
**Value For Money**2%
## **Common questions**
- **Is protein skimmer profitable to sell on Amazon United States?**
- The niche generates $276K/yr across 43 tracked products. 3 of 9 products launched in the last 360 days are still selling. 90-day search growth is -22.5%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the protein skimmer niche?**
- 27 brands and 57 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 50% of demand.
- **What do buyers complain about in protein skimmer?**
- Top complaints mined from reviews: Durability, Functionality-Overall, Quality-Overall. The return rate is 7.9% — above our launch gate.
- **When does demand for protein skimmer peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the protein skimmer niche?**
- Listings span $11.77–$297.15; the average listing price is $104.83 (sweet spot $15–$100). The average incumbent carries 207 reviews — the moat a new listing must climb.
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