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10 Best Saltwater Protein Skimmer 2025 in the United States
#1
Winner
MagTool Aquarium in-Sump DC Protein Skimmer, with Controllable DC Pinwheel Pump for Up to 135-185Gal Reef Tank (N170 Plus)
The MagTool Aquarium in-Sump DC Protein Skimmer is designed for reef tanks between 135 and 185 gallons, making it a good fit for hobbyists with medium to larger saltwater aquariums. Its compact footprint (9.0 x 8.2 inches) is ideal for setups with limited space, and the integrated DC pump with needle wheel impellers generates a strong 660 gallons per hour flow. This pump's sine wave technology ensures quiet operation and adjustable speed settings (1-8 levels), including a feed mode and delay start, which helps customize performance and reduce noise during feeding times.
Rating
10.0
Chosen by1,168
Pump Performance
Bubble Production
Ease of Maintenance
Most important from
97 reviews
#2
Coralife Aquarium Fish Tank Marine Salt Water DC-Controlled Variable Speed Square Protein Skimmer, Up To 150 Gallons
The Coralife DC-Controlled Square Protein Skimmer is designed for saltwater tanks up to 150 gallons, making it a good fit for medium-sized marine or reef aquariums. It features a variable speed pump controlled electronically with a remote, which allows you to fine-tune water flow for more efficient skimming. A standout feature is the titanium mesh that replaces the usual plastic needle wheel, breaking bubbles into smaller sizes to improve waste removal. This skimmer also has a small footprint that fits easily into sumps, helping save space.
Rating
8.8
Tank Size Compatibility
Pump Performance
Bubble Production
Most important from
62 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 aquariums up to 100 gallons, making it suitable for medium-sized saltwater tanks. This skimmer uses a needle wheel impeller, which is known for its efficiency in producing fine bubbles that enhance the skimming process. The new pinwheel impellers included in this model claim to improve performance by up to 100%, suggesting a significant upgrade in bubble production and effectiveness at removing organic waste from the tank water.
Rating
8.5
Bubble Production
Ease of Maintenance
Build Quality
Most important from
292 reviews
Top 10 Best Saltwater Protein Skimmer 2025 in the United States
#1
Winner
MagTool Aquarium in-Sump DC Protein Skimmer, with Controllable DC Pinwheel Pump for Up to 135-185Gal Reef Tank (N170 Plus)
MagTool Aquarium in-Sump DC Protein Skimmer, with Controllable DC Pinwheel Pump for Up to 135-185Gal Reef Tank (N170 Plus)
Tank Size Compatibility: 135-185 gallons
Skimmer Type: in-sump
Pump Performance: 660 GPH, DC pump, adjustable speed
Bubble Production: Cell-cast diffuser, hybrid cone structure
Ease of Maintenance: bottom-open outlet, easy cleaning
Build Quality: durable, lightweight plastic
Chosen by 1168 this week
Coralife Aquarium Fish Tank Marine Salt Water DC-Controlled Variable Speed Square Protein Skimmer, Up To 150 Gallons
Coralife Aquarium Fish Tank Marine Salt Water DC-Controlled Variable Speed Square Protein Skimmer, Up To 150 Gallons
Tank Size Compatibility: Up to 150 gallons
Skimmer Type: DC-controlled square protein skimmer
Pump Performance: Variable speed pump with remote control
Bubble Production: Titanium mesh breaks bubbles smaller
Ease of Maintenance: Removable cup for quicker cleaning
Build Quality: Clear body, decent for price
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
Skimmer Type: Needle Wheel
Bubble Production: fine bubbles
Ease of Maintenance: easy-to-use
Build Quality: robust
MagTool Aquarium in-Sump DC Protein Skimmer, with Controllable DC Pinwheel Pump for Up to105-135Gal Reef Tank (N130 Plus)
MagTool Aquarium in-Sump DC Protein Skimmer, with Controllable DC Pinwheel Pump for Up to105-135Gal Reef Tank (N130 Plus)
Tank Size Compatibility: 105-135 gallons
Skimmer Type: in-Sump DC Protein Skimmer
Pump Performance: 400 GPH DC pump, 8 speed levels
Bubble Production: fine, efficient bubbles
Ease of Maintenance: straightforward
Build Quality: plastic
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
Skimmer Type: In-Sump Protein Skimmer
Pump Performance: VarioS-2S controllable pinwheel pump
Bubble Production: Efficient bubble production
Ease of Maintenance: Relatively straightforward
Build Quality: Durable materials like acrylic
Related Products
Reef Octopus Classic 202-S Protein Skimmer
Reef Octopus Classic 202-S Protein Skimmer
Tank Size Compatibility: 250 gallons
Skimmer Type: in-sump
Pump Performance: robust
Bubble Production: effective
Ease of Maintenance: dishwasher safe
Build Quality: durable acrylic
Reef Octopus Classic 150SSS Protein Skimmer
Reef Octopus Classic 150SSS Protein Skimmer
Tank Size Compatibility: up to 210 gallons
Skimmer Type: sump installation
Pump Performance: Aquatrance 2000S pump
Bubble Production: efficient
Ease of Maintenance: straightforward
Build Quality: strong
Reef Octopus OCTO Classic 1000 HOB Protein Skimmer Bundle (3 items)
Reef Octopus OCTO Classic 1000 HOB Protein Skimmer Bundle (3 items)
Tank Size Compatibility: 50 to 130 gallons
Skimmer Type: hang-on-back
Pump Performance: Aquatrance 1000s, 9 watts
Bubble Production: good air and water amount
Ease of Maintenance: pump outside tank, easy cleaning
Build Quality: sturdy acrylic
Reef Octopus Classic 150INT Protein Skimmer
Reef Octopus Classic 150INT Protein Skimmer
Tank Size Compatibility: 150 gallons
Skimmer Type: in-sump
Pump Performance: Aquatrance 2000 Pinwheel Pump
Bubble Production: Diffusing Chamber, Full Cone Body
Build Quality: robust and durable
#10
OCTO Classic BH-2000 Protein Skimmer
OCTO Classic BH-2000 Protein Skimmer
Tank Size Compatibility: up to 208 gallons
Skimmer Type: hang-on
Pump Performance: Aquatrance 2000 pump
Bubble Production: efficient bubbles
Build Quality: acrylic material
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Buying Guide for the Best Saltwater Protein Skimmer
Choosing the right saltwater protein skimmer is crucial for maintaining a healthy and clean aquarium. A protein skimmer helps remove organic waste before it breaks down into harmful substances, ensuring a stable environment for your marine life. When selecting a protein skimmer, consider the size of your tank, the type of marine life you have, and the skimmer's efficiency. 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 a skimmer that is too small for your tank won't be able to keep up with the waste production, while one that is too large may be unnecessarily powerful and more expensive. Skimmers are usually 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 bioload of your specific setup.
Skimmer TypeThere are several types of protein skimmers, including hang-on-back (HOB), in-sump, and external skimmers. The type of skimmer you choose depends on your tank setup and available space. HOB skimmers are ideal for smaller tanks or those without a sump, as they hang on the back of the aquarium. In-sump skimmers are placed inside the sump and are suitable for larger tanks with a sump system. External skimmers are positioned outside the tank or sump and are typically used for very large systems. Choose the type that best fits your tank's configuration and space constraints.
Pump PerformancePump performance refers to the power and efficiency of the pump that drives the skimmer. This is important because a more powerful pump can process more water and remove waste more effectively. Pumps are usually rated by their flow rate, measured in gallons per hour (GPH). For smaller tanks, a lower GPH may be sufficient, while larger tanks will require a higher GPH to maintain water quality. Consider the size of your tank and the bioload when selecting a skimmer with an appropriate pump performance.
Bubble ProductionBubble production is a critical aspect of a protein skimmer's efficiency. The skimmer creates tiny bubbles that attract and trap organic waste, which is then removed from the water. The size and quantity of bubbles can affect the skimmer's performance. Skimmers that produce finer bubbles generally perform better because they have a larger surface area to capture waste. When choosing a skimmer, look for one that is known for producing fine, consistent bubbles to ensure optimal waste removal.
Ease of MaintenanceEase of maintenance refers to how simple it is to clean and maintain the protein skimmer. Regular maintenance is essential to keep the skimmer functioning efficiently. Some skimmers are designed with easy-to-remove parts and accessible collection cups, making cleaning more straightforward. Consider how often you are willing to perform maintenance and choose a skimmer that aligns with your preferences. A skimmer that is easy to maintain will save you time and ensure it continues to operate effectively.
Build QualityBuild quality refers to the materials and construction of the protein skimmer. A well-built skimmer will be more durable and reliable over time. Look for skimmers made from high-quality materials like acrylic or strong plastics, and check for solid construction and good craftsmanship. A skimmer with a sturdy build will withstand the rigors of continuous use and provide long-term value. Choose a skimmer with a reputation for durability to ensure it lasts and performs well in your aquarium.