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Protein Skimmers

10 Best Protein Skimmers 2025 in the United States

#1

Winner

9.9 score

Simplicity 240DC Protein Skimmer for Saltwater Aquariums

Simplicity 240DC Protein Skimmer for Saltwater Aquariums

Simplicity

9.9 score

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The Simplicity 240DC Protein Skimmer is a versatile and efficient option for saltwater aquariums, suitable for tanks up to 240 gallons. Its adjustable DC pump speed allows for customized performance, which can be particularly useful for different tank setups and bioloads. The skimmer's cone shape design enhances its efficiency by improving the air and water mixing process, resulting in better skimming performance. Additionally, the small footprint makes it a good choice for aquariums with limited sump space.

Rating
9.9
Chosen by1,131
Air Intake and Water Flow Rate
Build Quality and Materials
Ease of Maintenance

Most important from
135 reviews

Air Intake and Water Flow Rate
The proven design is efficient at generating microbubbles, and the funnel effectively channels skimmate.
Build Quality and Materials
Well made and simple to assemble, the skimmer has a quick break-in period and feels substantial right out of the box.
Ease of Maintenance
The large collection cup with a drain simplifies maintenance, allowing for easy emptying without removing the cup.
Noise Level
The unit operates quietly, especially when the pump is tuned to the environment, making it nearly silent.
#2
9.8 score

Reef Octopus Regal Internal Protein Skimmer REGAL-200INT

Reef Octopus Regal Internal Protein Skimmer REGAL-200INT

Reef Octopus

9.8 score

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The Reef Octopus Regal Internal Protein Skimmer REGAL-200INT is designed for various aquarium sizes ranging from 200 to 400 gallons, making it versatile for different filtration demands. It features a Reef Octopus 24V VarioS-4S Controllable Pinwheel Pump, which is highly efficient and offers five controllable power settings. This allows users to fine-tune the performance to match their tank's needs, contributing to effective filtration and energy efficiency. Its sturdy acrylic build ensures durability, while the compact footprint (14 inches) makes it suitable for sumps with limited space, although its dimensions (22 x 20 x 13 inches) might be a consideration for smaller setups.

Rating
9.8
Tank Size Compatibility
Build Quality and Materials
Ease of Maintenance

Most important from
7 reviews

Tank Size Compatibility
This skimmer performs exceptionally well, requiring daily cleaning of the collection cup even in a low stock tank.
Build Quality and Materials
The skimmer looks fantastic and is built with high-quality materials.
Ease of Maintenance
The control feature is useful, particularly when feeding fish, though it generally doesn't need frequent adjustments.
#3
9.8 score

Reef Octopus OCTO Regal 150 SSS Space Saver Protein Skimmer

Reef Octopus OCTO Regal 150 SSS Space Saver Protein Skimmer

Reef Octopus

9.8 score

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The Reef Octopus OCTO Regal 150 SSS Space Saver Protein Skimmer is designed for aquariums of varying sizes, making it versatile for a range of tank setups. It is effective for tanks up to 210 gallons with light filtration needs, 160 gallons with medium filtration demands, and 100 gallons for high filtration requirements. This makes it suitable for both moderate and heavily stocked aquariums. Its small footprint (9” x 7.5”) and height (23.6”) ensure it doesn't take up much space, which is beneficial for users with limited sump space.

Rating
9.8
Air Intake and Water Flow Rate
Build Quality and Materials
Ease of Maintenance

Most important from
11 reviews

Air Intake and Water Flow Rate
The motor creates a lot of bubbles and operates quietly, blending into the existing water flow noise.
Build Quality and Materials
Materials are very well made and solid, ensuring longevity without concerns of cracking or falling apart.
Ease of Maintenance
Using DC instead of AC makes the setup and operation simple. The variable speed motor is key to its ease of use.
Noise Level
Installed and running properly in under an hour, the skimmer is very quiet and simple to operate.

Top 10 Best Protein Skimmers 2025 in the United States

#1

Winner

9.9 score

Slide 1

Simplicity

Simplicity 240DC Protein Skimmer for Saltwater Aquariums

Tank Size Compatibility: up to 240 gallons
Type of Skimmer: Protein Skimmer
Air Intake and Water Flow Rate: adjustable DC pump speed
Build Quality and Materials: robust, stainless steel
Ease of Maintenance: collection cup drain with cap

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Chosen by 1131 this week

#2

9.8 score

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Reef Octopus

Reef Octopus Regal Internal Protein Skimmer REGAL-200INT

Tank Size Compatibility: 200 to 400 gallons
Type of Skimmer: Internal Protein Skimmer
Air Intake and Water Flow Rate: Reef Octopus 24V VarioS-4S Pump
Build Quality and Materials: acrylic
Ease of Maintenance: relatively straightforward
Noise Level: reduced operational noise

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#3

9.8 score

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Reef Octopus

Reef Octopus OCTO Regal 150 SSS Space Saver Protein Skimmer

Tank Size Compatibility: Up to 210 gallons
Type of Skimmer: Protein Skimmer
Air Intake and Water Flow Rate: Controllable DC 2500S Pinwheel Pump
Build Quality and Materials: Modern plastic materials
Ease of Maintenance: Manual cleaning required
Noise Level: Quieter due to DC pump

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#4

9.7 score

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Reef Octopus

Reef Octopus Classic 110-INT Needle Wheel Protein Skimmer for Aquarium

Tank Size Compatibility: up to 100 gallons
Type of Skimmer: needle wheel
Ease of Maintenance: user-friendly design
Noise Level: quieter than other options

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5% OFF
#5

9.6 score

Slide 1

Reef Octopus

Reef Octopus OCTO Regal 150-INT In-Sump Protein Skimmer

Tank Size Compatibility: up to 210 gallons
Type of Skimmer: In-Sump Skimmer
Build Quality and Materials: Acrylic, Foam
Ease of Maintenance: regular cleaning needed
Noise Level: generally acceptable

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Related Products

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#6

9.4 score

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Reef Octopus

Reef Octopus Classic 150SSS Protein Skimmer

Tank Size Compatibility: up to 210 gallons
Type of Skimmer: Protein Skimmer
Air Intake and Water Flow Rate: Aquatrance 2000S pump
Build Quality and Materials: robust, durable materials
Ease of Maintenance: straightforward
Noise Level: relatively low

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8% OFF
#7

9.3 score

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REEF

Reef Octopus Classic 150INT Protein Skimmer

Tank Size Compatibility: 150 gallons
Type of Skimmer: Protein Skimmer
Build Quality and Materials: Good
Ease of Maintenance: Easy maintenance
Noise Level: Somewhat noisy

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#8

9.1 score

Slide 1

REEF

OCTO Classic BH-2000 Protein Skimmer

Tank Size Compatibility: up to 208 gallons
Type of Skimmer: hang-on skimmer
Air Intake and Water Flow Rate: efficient air and water flow
Build Quality and Materials: durable acrylic
Ease of Maintenance: manual cleaning required
Noise Level: moderate

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#9

9.0 score

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REEF

Reef Octopus Classic 202-S Protein Skimmer

Tank Size Compatibility: 250 Gallons
Type of Skimmer: in-sump
Build Quality and Materials: Acrylic
Ease of Maintenance: straightforward

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#10

8.8 score

Slide 1

Reef Octopus

Reef Octopus Elite 150INT DC Super Cone Protein Skimmer

Tank Size Compatibility: 100-150 gallons
Type of Skimmer: Super Cone Protein Skimmer
Build Quality and Materials: solid, durable materials
Ease of Maintenance: easy to clean
Noise Level: quiet operation

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Buying Guide for the Best Protein Skimmers

Choosing the right protein skimmer for your aquarium is crucial for maintaining a healthy and clean environment for your aquatic life. Protein skimmers help remove organic waste before it breaks down into harmful substances, ensuring better water quality. When selecting a protein skimmer, consider the size of your tank, the type of skimmer, and the specific needs of your aquarium inhabitants. Here are some key specifications to help you make an informed decision.
Tank Size CompatibilityTank size compatibility refers to the range of aquarium sizes that a protein skimmer can effectively service. This is important because using a skimmer that is too small for your tank will result in inadequate waste removal, while an oversized skimmer may be inefficient and waste energy. Skimmers are typically rated for specific tank sizes, such as up to 50 gallons, 50-100 gallons, or over 100 gallons. To pick the right one, match the skimmer's rating to your tank size, ensuring it can handle the volume of water and the bioload of your aquarium.
Type of SkimmerThere are several types of protein skimmers, including hang-on-back (HOB), in-sump, and external skimmers. The type of skimmer is important because it determines how and where the skimmer will be installed in your aquarium setup. HOB skimmers are ideal for smaller tanks or those without a sump, as they are easy to install and maintain. In-sump skimmers are designed to be placed inside a sump and are suitable for larger tanks with more complex filtration systems. External skimmers are placed outside the tank or sump and are often used in large or commercial setups. Choose the type that best fits your aquarium's design and space constraints.
Air Intake and Water Flow RateThe air intake and water flow rate of a protein skimmer determine its efficiency in removing waste. Higher air intake and water flow rates generally mean better performance, as more water is processed and more waste is removed. Skimmers are often rated by their air intake in liters per hour (L/h) and water flow rate in gallons per hour (GPH). For smaller tanks, a lower flow rate may be sufficient, while larger tanks will benefit from higher rates. Consider the bioload of your tank and choose a skimmer with appropriate air intake and water flow rates to ensure optimal performance.
Build Quality and MaterialsThe build quality and materials of a protein skimmer affect its durability and longevity. High-quality skimmers are typically made from materials like acrylic or high-grade plastics, which are resistant to corrosion and wear. This is important because a well-built skimmer will last longer and require less maintenance. When evaluating build quality, look for sturdy construction, reliable seals, and quality components. Investing in a well-made skimmer can save you money and hassle in the long run.
Ease of MaintenanceEase of maintenance refers to how simple it is to clean and maintain the protein skimmer. Regular maintenance is crucial for keeping the skimmer functioning efficiently and prolonging its lifespan. Skimmers with easily accessible parts, simple disassembly, and clear instructions are easier to maintain. Consider how often you are willing to perform maintenance and choose a skimmer that fits your routine. A skimmer that is easy to clean will ensure consistent performance and reduce the risk of malfunctions.
Noise LevelThe noise level of a protein skimmer can impact the overall enjoyment of your aquarium. Some skimmers can be quite loud, which may be disruptive in a home or office setting. Noise levels are influenced by the design of the skimmer and the quality of its components. Look for skimmers that are specifically designed to operate quietly, often featuring noise-reducing technologies or components. If you value a quiet environment, prioritize skimmers with low noise levels to ensure a peaceful aquarium experience.

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