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10 Best Protein Skimmers 2025 in the United States
#1
Winner
Reef Octopus Regal Internal Protein Skimmer REGAL-200INT
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
9.9
Chosen by1,464
Tank Size Compatibility
Build Quality and Materials
Ease of Maintenance
Most important from
7 reviews
#2
Reef Octopus OCTO Regal 150-INT In-Sump Protein Skimmer
The Reef Octopus OCTO Regal 150-INT In-Sump Protein Skimmer is designed for aquarists who are looking for an efficient way to maintain water quality in medium to large tanks, accommodating up to 210 gallons with light filtration demands. A standout feature is its small footprint, making it suitable for setups with limited space, and the DC controllable pump allows for energy-efficient operation tailored to your aquarium's needs.
Rating
9.8
Type of Skimmer
Build Quality and Materials
Most important from
5 reviews
#3
Reef Octopus Classic 110-INT Needle Wheel Protein Skimmer for Aquarium
The Reef Octopus Classic 110-INT Needle Wheel Protein Skimmer is designed for tanks up to 100 gallons, making it suitable for medium-sized aquariums. This skimmer features a needle wheel type which is known for efficiently breaking up bubbles to remove organic waste from the water. The new pinwheel impellers enhance its performance, potentially doubling its efficiency compared to older models, ensuring effective skimming action in your tank.
Rating
9.7
Build Quality and Materials
Ease of Maintenance
Most important from
288 reviews
Top 10 Best Protein Skimmers 2025 in the United States
#1
Winner
9.9 score
Reef Octopus Regal Internal Protein Skimmer REGAL-200INT
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
Chosen by 1464 this week
Reef Octopus OCTO Regal 150-INT In-Sump Protein Skimmer
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
Reef Octopus Classic 110-INT Needle Wheel Protein Skimmer for Aquarium
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
Simplicity 240DC Protein Skimmer for Saltwater Aquariums
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
Reef Octopus Classic 150SSS Protein Skimmer
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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Reef Octopus Classic 202-S Protein Skimmer
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
OCTO Classic BH-2000 Protein Skimmer
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
Reef Octopus OCTO Regal 150 SSS Space Saver Protein Skimmer
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
Reef Octopus Elite 150INT DC Super Cone Protein Skimmer
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
#10
8.7 score
Reef Octopus Classic 150INT Protein Skimmer
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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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.