10 Best Protein Skimmers 2026 in the United States

The Reef Octopus Classic 202-S Protein Skimmer is designed for in-sump application, making it a suitable choice for those who prefer this type of skimmer setup. It is compatible with tanks up to 250 gallons, which covers a broad range of tank sizes and is ideal for larger aquariums. The super cone body design, ranging from 8.27 inches to 5.12 inches, helps in maximizing the efficiency of skimming by increasing the contact time between water and air bubbles, thereby enhancing the removal of organic waste.

With a footprint of 12.4 inches by 10 inches and a water height requirement between 7 to 9 inches, it is relatively compact, though it requires some precise space planning in your sump area. The skimmer is constructed from high-quality acrylic, which ensures durability and long-term performance. The customer reviews rate it quite highly at 4.4 out of 5 stars, indicating good user satisfaction. Maintenance is straightforward, which is a plus for those who do not want to spend a lot of time on upkeep.

However, the unit weighs 15 pounds, which might be slightly heavy for some users when handling it for cleaning or adjustments. Noise levels are not explicitly mentioned, but most users find it relatively quiet, though this can vary. Given its robust build and effective performance, it is well-suited for serious hobbyists and those with large tanks.

The OCTO Classic BH-2000 Protein Skimmer is designed for aquariums up to 208 gallons, making it suitable for medium to large tanks. This hang-on skimmer features an Aquatrance 2000 Pinwheel pump, known for its efficient air intake and water flow rate, which helps in maintaining water quality by removing proteins and organic compounds effectively.

The adjustable surface skimmer attachment adds flexibility, allowing for better customization based on specific tank needs. The skimmer's build quality is robust, made from durable acrylic, which ensures longevity and reliability. However, its 21-inch height and 4-inch width may require some consideration for installation space.

While not overly complicated, maintenance can be a bit time-consuming, as it is not dishwasher safe and needs regular manual cleaning. Noise levels are moderate, typical for skimmers of this type, but may not be suitable for those seeking a completely quiet aquarium setup. The OCTO Classic BH-2000 is a solid choice for hobbyists with larger tanks who value effective protein removal and durability, though they should be prepared for regular maintenance and some noise.

The Simplicity 320DC Protein Skimmer is designed for aquarium tanks up to 320 gallons, making it a good choice for medium to large reef tanks. It uses an adjustable DC pump, which allows you to control the water flow and air intake to optimize skimming performance depending on your tank's needs. Its cone-shaped design and compact footprint help save space inside the aquarium setup.

The collection cup features a drain with a cap, which simplifies maintenance by making it easier to empty without removing the entire cup. The skimmer is submersible and made with solid materials, giving it a sturdy feel at 11 pounds. Users generally find it quiet during operation, which is a plus for home or office environments. However, some might find the absence of a lid on the collection cup a minor downside, as it can potentially allow odors to escape.

The adjustable pump speed is convenient but requires some trial and error to find the best setting. This skimmer effectively balances performance and ease of use, making it a reliable option for fish and reef enthusiasts wanting a compact, effective protein skimmer without complex setup.