Octo Classic 150EXT Recirculating Protein Skimmer

Reef Octopus Classic 150EXT Recirculating Protein Skimmer

The Reef Octopus Classic 150EXT (SKU: CLSC-150EXT) is a high-grade external recirculating protein skimmer engineered to supply superior organic filtration control to marine aquariums up to 200 gallons. Standing apart from traditional internal skimmers, the Classic 150EXT relies on a dual-flow recirculating configuration. The onboard Aquatrance 2000s pinwheel pump dedicates 100% of its performance to continuously shredding air and water inside the 6-inch chamber. A separate, dedicated feed pump or a direct plumbed line from the tank overflow (sold separately) dictates the water flow-through rate—giving you surgical control over nutrient contact time.

Handcrafted from durable, optical-grade cast acrylic, the Classic 150EXT features a specialized hybrid body that naturally calms internal water churning. This structural design lets the ultra-fine micro-bubble mist rise smoothly without popping prematurely, ensuring that complex organic waste products accumulate efficiently in the quick-release collection cup. Equipped with a heavy-duty bubble plate diffuser, an oversized air silencer for quiet cabinet operation, and standard plumbing adapters, this external workhorse is an elite asset for standalone marine fish-only and thriving reef displays.

Key Features

• Decoupled Flow Performance: Optimizes gas exchange and organic skimming by isolating internal bubble mixing from external tank turnover volume.

• Aquatrance 2000s Pinwheel Pump: Infuses a massive 720 L/H of air pull into the reaction chamber while consuming a modest 18 Watts.

• Turbulence Mitigation Plate: Features an internal bubble diffuser that evenly distributes flow, preventing harsh splashing near the neck.

• Precision Gate Valve System: Simplifies water column adjustments, making it easy to tune between thick dry skimmate or wet organic skimming.

• Tight-Space Friendly: Built to accommodate shorter cabinets, requiring only half an inch of overhead vertical clearance to comfortably remove the collection cup.

Bioload Handling

• Heavy Bioload: 120 Gallons

• Medium Bioload: 160 Gallons

• Light Bioload: 200 Gallons

Online exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.