Deltec MC501 DC Protein Skimmer – Compact Internal & Sump Skimmer

The Deltec MC501 Multi Compact Protein Skimmer (DC) is a high-performance internal skimmer designed for reef keepers who want powerful filtration in a compact footprint. Ideal for in-tank or sump installation, the MC501 delivers professional-level protein removal while remaining quiet, efficient, and easy to maintain.

Equipped with a DC controllable pump and a full-size pinwheel, the MC501 produces 350–400 litres of air per hour, comparable to larger external skimmers. This makes it suitable not only for your current system but also for future aquarium upgrades—saving money in the long term.

Designed with flexibility in mind, the MC501 includes an adjustable weir plate for consistent performance across varying water depths, making it an excellent choice for both new reef keepers and experienced aquarists.

Key Features:

• DC controllable pump for efficient, quiet operation
• Suitable for internal aquarium or sump installation
• Produces 350–400 LPH of air at the venturi
• Full-size pinwheel impeller for superior skimming
• Adjustable weir plate for stable water level control
• No additional feed pump required
• Compact footprint – ideal for space-restricted systems
• Suitable for 450–650 litre reef aquariums
• Built for long-term use and future system upgrades

The Deltec MC501 DC Protein Skimmer offers powerful, controllable protein skimming in a compact design suitable for both in-tank and sump setups. With proven Deltec engineering, quiet DC operation, and upgrade-ready capacity, it’s a smart investment for reef aquariums of up to 650 litres. Available now at Reef Freaks.