Mechanical filtration is often the first line of defence in maintaining a healthy reef aquarium. Traditionally, filter socks have been the go-to solution for removing suspended waste, uneaten food, detritus, and organic debris before they can break down and affect water quality. However, many reef keepers eventually grow tired of the constant washing and replacement cycle that filter socks require.
Enter the Red Sea ReefMat — an intelligent automatic filter roller designed to replace traditional filter socks and provide continuous mechanical filtration with minimal maintenance. By automatically advancing clean fleece material when required, the ReefMat helps maintain consistent filtration performance while reducing manual upkeep.
If you're considering upgrading your reef aquarium, you may be wondering how easily a ReefMat can be integrated into your existing sump system. The good news is that the ReefMat was specifically designed with flexibility in mind and can be adapted to many different aquarium setups.
In this guide, we'll explain how the Red Sea ReefMat works, assess compatibility with existing sump systems, and walk through the installation process step by step.
What Is the Red Sea ReefMat?
The Red Sea ReefMat is an automated fleece filter system designed to remove particulate waste before it has a chance to decompose within the aquarium.
Unlike traditional filter socks, the ReefMat uses a continuous roll of filter fleece.
As debris accumulates:
- Water flow slows
- Water level rises inside the unit
- Sensors detect the change
- The fleece automatically advances
This ensures that filtration remains efficient without requiring constant manual cleaning.
Why Upgrade to a ReefMat?
Many reef keepers choose a ReefMat because it offers significant advantages over traditional mechanical filtration.
Key Benefits
- Reduced maintenance
- Improved water clarity
- Consistent filtration efficiency
- Reduced nitrate and phosphate accumulation
- Smart app integration
- Quiet operation
- Improved sump cleanliness
The result is a cleaner and more stable reef aquarium.
How the ReefMat Works
The ReefMat sits between your aquarium overflow and the rest of your filtration system.
Water enters the unit and passes through a fine fleece material that traps:
- Fish waste
- Uneaten food
- Detritus
- Organic debris
- Suspended particles
As the fleece becomes clogged, the automatic advancement system exposes fresh material.
This process occurs only when needed, helping maximise fleece usage.
Choosing the Correct ReefMat Model
Before installation, selecting the appropriate model is essential.
Common Models
ReefMat 250
Suitable for smaller reef systems.
ReefMat 500
Popular for medium-sized reef aquariums.
ReefMat 1200
Designed for larger, high-flow systems.
Factors to Consider
- Aquarium volume
- Overflow capacity
- Sump space
- Future stocking plans
Choosing the correct model ensures optimal performance.
Is Your Existing Sump Compatible?
One of the ReefMat's biggest strengths is its flexibility.
Many existing sump systems can accommodate a ReefMat without major modifications.
Compatible Systems
- Red Sea sumps
- Custom sumps
- Glass sump systems
- Acrylic sump systems
However, careful measurement is essential.
Measure Available Space
Before purchasing:
Check
- Width
- Depth
- Height clearance
Remember to allow additional room for:
- Fleece roll replacement
- Plumbing access
- Maintenance access
A ReefMat should never be squeezed into a space where servicing becomes difficult.
Assess Your Current Mechanical Filtration
The ReefMat is typically installed where filter socks are currently located.
Existing Setups May Include
- Filter socks
- Filter cups
- Sponge chambers
- Mechanical media trays
In many cases, these components will be removed or bypassed once the ReefMat is installed.
Understanding Water Flow Requirements
The ReefMat is designed to receive water directly from the aquarium overflow.
Typical Flow Path
Display Tank → Overflow → ReefMat → Protein Skimmer Section → Return Pump
This arrangement ensures waste is removed before it can break down elsewhere in the sump.
Planning Your Installation
Before making any modifications:
Review
- Existing plumbing layout
- Overflow pipe sizes
- Sump chamber dimensions
- Access points
A little planning can save significant time during installation.
Step 1: Turn Off Equipment
Before working on your sump:
Switch Off
- Return pump
- Skimmer
- Reactors
- UV systems
Allow water levels to stabilise before proceeding.
Safety should always come first.
Step 2: Remove Existing Mechanical Filtration
If your sump currently uses:
- Filter socks
- Filter cups
- Sponge blocks
remove these components.
The ReefMat will now assume responsibility for mechanical filtration.
Step 3: Position the ReefMat
Carefully place the ReefMat into the sump.
Considerations
- Stable positioning
- Maintenance access
- Roll replacement access
- Cable routing
Avoid placing the unit where future servicing will be difficult.
Step 4: Connect the Overflow Plumbing
The ReefMat accepts water directly from the aquarium overflow.
Depending on Your System
You may need:
- Metric adaptors
- Flexible hose
- PVC fittings
- Reducers
Red Sea includes several connection options to simplify installation.
Important
Ensure all plumbing connections are secure and leak-free.
Step 5: Route Water Correctly
After passing through the fleece:
Water should flow naturally into the next sump chamber.
Typically:
- Protein skimmer section
- Refugium
- Biological filtration chamber
Verify that water exits the ReefMat freely without restriction.
Step 6: Install the Fleece Roll
The ReefMat includes:
- Supply roll
- Collection roll
Follow manufacturer instructions carefully when threading the fleece.
Check
- Proper alignment
- Smooth movement
- Correct tension
Incorrect installation can reduce performance.
Step 7: Connect the Controller
The ReefMat includes an integrated controller and sensor system.
Connect
- Power supply
- Motor assembly
- Water level sensor
Ensure all cables are routed neatly and safely.
Step 8: Connect to ReefBeat
One of the ReefMat's standout features is compatibility with the Red Sea ReefBeat app.
Benefits
- Roll usage monitoring
- Notifications
- Performance tracking
- Maintenance alerts
The setup process is straightforward and guided through the app.
Step 9: Test the System
Before leaving the aquarium unattended:
Verify
- Water enters correctly
- Fleece advances properly
- No leaks are present
- Sensors respond correctly
Testing prevents unexpected issues later.
Adjusting Flow Rates
While the ReefMat handles substantial water flow, excessive flow rates may reduce efficiency.
Signs of Excessive Flow
- Frequent fleece advancement
- Excess noise
- Uneven fleece loading
Adjust overflow rates if necessary.
Proper flow optimisation improves fleece lifespan.
Integrating with Existing Equipment
The ReefMat works alongside many popular reef filtration systems.
Protein Skimmers
Often perform more efficiently when mechanical waste is removed first.
Reactors
Can continue operating normally.
Refugiums
Benefit from reduced particulate accumulation.
UV Sterilisers
Remain unaffected by ReefMat installation.
The ReefMat complements rather than replaces other filtration components.
How Often Will the Fleece Need Replacing?
Replacement frequency depends on:
- Bioload
- Feeding habits
- Aquarium size
- Flow rate
Typical Lifespan
Many hobbyists achieve:
- Several weeks to multiple months
per fleece roll.
Heavily stocked systems will generally consume fleece more quickly.
Common Installation Mistakes
Insufficient Clearance
Always leave room for roll changes.
Poor Plumbing Alignment
Can restrict flow.
Incorrect Fleece Routing
May prevent smooth advancement.
Ignoring Flow Requirements
Can reduce efficiency.
Skipping Testing
Always verify operation before leaving the system unattended.
ReefMat Maintenance Tips
Although maintenance is dramatically reduced compared to filter socks, some care is still required.
Regular Checks
- Sensor cleanliness
- Roll status
- Plumbing inspection
- App notifications
Occasional Cleaning
Remove accumulated salt creep and debris.
A few minutes of preventative maintenance keeps the system running reliably.
Is the ReefMat Worth It?
For many reef keepers, the ReefMat becomes one of the most appreciated upgrades on their aquarium.
Reasons Hobbyists Love It
- Less maintenance
- Cleaner sump
- Better water clarity
- Reduced nutrient accumulation
- Smart monitoring
The time saved on filter sock cleaning alone is often enough to justify the upgrade.
Final Thoughts
The Red Sea ReefMat is one of the most effective and convenient mechanical filtration upgrades available for modern reef aquariums. By automatically removing particulate waste before it breaks down, the ReefMat helps improve water quality, reduce maintenance, and create a cleaner sump environment.
With careful planning, most existing sump systems can accommodate a ReefMat with minimal modification. By selecting the correct model, ensuring proper plumbing integration, and following a structured installation process, you'll quickly enjoy the benefits of automated mechanical filtration.
At Charterhouse Aquatics, we stock the full range of Red Sea ReefMat systems, replacement fleece rolls, plumbing accessories, reef filtration equipment, and aquarium maintenance products to help keep your reef aquarium running at its best.
