The Reef Octopus Regal 300 INT is a high-performance in-sump protein skimmer designed to efficiently remove organic waste and dissolved proteins from large saltwater aquarium systems. By creating a dense foam, it effectively strips pollutants from the water column before they can break down into harmful nitrates and phosphates, resulting in superior water clarity and a healthier environment for all marine life. Its robust design and advanced features provide reliable, powerful filtration for demanding reef and fish-only aquariums.

Engineered for precision and durability, this skimmer is built from solid cast acrylic and powered by a controllable VarioS DC pump that operates on a safe and efficient 36V system. Aquarists can fine-tune performance with five energy-saving power settings, managed via a detachable controller with a waterproof union. Key features include a safety float switch to prevent overflow, 0-10v input for integration with third-party aquarium controllers, and two distinct feed modes that pause operation for either 15 or 60 minutes to allow for undisturbed feeding.

This skimmer is the ideal choice for dedicated hobbyists with heavily stocked aquariums up to 500 gallons, medium bioload systems up to 600 gallons, or lightly stocked tanks up to 700 gallons. Its advanced controllability and high-volume processing capacity make it perfect for aquarists who require precise control over their filtration to maintain pristine water conditions for sensitive coral and fish species. The combination of power, efficiency, and smart features ensures it can handle the significant bioload of a mature reef ecosystem.