10 Best Protein Skimmers 2025 in the United States

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.

The 40mm output size, along with the provided adapter, ensures compatibility with various plumbing systems. Maintenance is relatively straightforward, thanks to its accessible design. However, given its intricate technology and parts, it might require more frequent upkeep compared to simpler models. The advanced DC pump technology helps in reducing operational noise, which is great for maintaining a peaceful environment.

This protein skimmer is best suited for serious aquarists who manage large tanks and need a reliable, adjustable, and efficient skimming solution.

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.

One of the strengths of the OCTO Regal is its build quality. Made from durable materials like acrylic and foam, it promises longevity and effectiveness. The adjustable pump with five energy-efficient power settings is a plus, as it gives users flexibility in managing the skimmer's operation based on specific tank requirements.

However, there are some considerations to keep in mind. While the skimmer excels in many areas, it might not perform as efficiently at its maximum rated tank size under heavy filtration demands, particularly for aquariums up to 100 gallons. This could be a drawback for users with larger bioloads. Additionally, the recommended sump water depth of 6-8 inches may limit compatibility with some setups, and maintenance may require regular cleaning due to its design. Noise level is generally acceptable, but some users might still find it a bit noticeable, especially in quieter environments. If you're looking for a reliable protein skimmer for a medium to large aquarium that requires manageable noise levels and efficient filtration without taking up much space, the Reef Octopus OCTO Regal 150-INT could be a strong contender. Just ensure your tank setup aligns with its specifications for optimal performance.

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.

Its performance features are acclaimed, providing users with a high operation rate in an easy-to-use package. In terms of build quality, Reef Octopus products typically have a reputation for being sturdy and long-lasting, and this model is expected to follow suit. Maintenance is also simplified with its user-friendly design, which is a great advantage for aquarium owners.

The noise level is an essential consideration, and while this product is generally quieter than many other options, it might still produce noticeable noise during operation. This skimmer is an excellent option for those looking to maintain water quality in their medium-sized aquariums, offering solid performance and reliability, though potential users should be mindful of the noise levels. Users with smaller tanks or those highly sensitive to noise may need to consider other options.