Description
The Red Sea ReefMat 250 is a smart, fully automated fleece roller filter system designed to keep your saltwater aquarium water crystal clear by mechanically filtering out fine debris and particulates for weeks at a time. It’s ideal for reef systems where water clarity is essential for coral health and aesthetics.
Key Features
- Plug & Play Installation: Simple setup in most sump configurations.
- Automated Roller: Uses replaceable fleece mat similar to a filter sock but with continuous feeding of fresh fleece as it becomes dirty.
- Smart Drive & Sensors: Monitors fleece usage and detects when it tears or runs out; integrates with Red Sea’s ReefBeat ecosystem for notifications and performance logging.
- High Flow Compatibility: Designed for systems up to 250 L (approx. 66 gal) and flow rates up to ~3500 L/hour.
- Includes Media Basket: Can hold chemical filtration media for additional water polishing.
Why It’s Useful
Mechanical filtration like ReefMat removes fine particulate waste before it breaks down into dissolved organics, helping reduce nutrient load and maintain water clarity especially crucial in reef tanks with corals and sensitive invertebrates.
This is the replacement fleece mat roll used inside the ReefMat units. Fleece rolls are consumable and need periodic replacement as they get filled with trapped waste.
How It Works
The ReefMat system feeds a fresh section of non-woven polyester fleece through the filter. Waste gets trapped on the surface of the fleece, and as it becomes dirty, the smart motor advances more mat keeping your mechanical filtration continuously fresh without manual sock changing.
Best Uses
Saltwater reef tanks
Systems up to ~250 L
ReefBeat smart aquarium setups
Reefers that demand high clarity and low nutrient load









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