Gray R-Matala Pre-Coiled Filter Media Roll (6-Inch Thickness)
Professional Drop-In Filter Media for Round Pond Filters & Barrel Systems
Gray R-Matala is a pre-coiled roll of super high-density gray Matala filter media that is factory-wound into a durable spool and permanently bonded for convenient installation. Designed as a drop-in filter cartridge for round filter tanks, barrels, and gravity-flow filtration systems, Gray R-Matala offers the finest filtration of all standard Matala densities.
Important: Gray Matala should not be confused with Black Matala. Gray Matala has a dark, dull gray appearance and is significantly denser, while Black Matala has a shiny black appearance and is the least dense.
Each Gray R-Matala coil is 6 inches thick and available in multiple diameters to fit a wide variety of round filtration systems.
Sizing and Installation
Gray R-Matala coils are handcrafted and intentionally manufactured approximately 1/2" to 3/4" larger than the advertised diameter. This oversized design allows the media to wedge securely against the inside walls of the filter tank, preventing water from bypassing the media.
For best results:
- Measure the inside diameter of your filter tank.
- Select a Gray R-Matala coil that is approximately 1/2" to 3/4" larger than the measured diameter.
- If your tank size falls between available diameters, purchase the next larger size and trim it for a custom fit.
A tight fit helps eliminate channeling and forces water through the media for maximum filtration efficiency.
Superior Mechanical and Biological Filtration
Gray R-Matala is the densest Matala media available, making it highly effective at capturing fine suspended solids while providing exceptional surface area for beneficial bacteria growth. Its dense structure is ideal for:
- Small algae particles
- Fine fish waste
- Bacterial floc
- Organic debris and detritus
- Uneaten fish food particles
The high-density fiber structure provides extensive surface area for biofilm development, making Gray R-Matala an excellent biological filter media while simultaneously helping maintain clear water.
Gray Matala offers one of the highest surface areas among standard Matala densities, supporting outstanding biological filtration performance.
Progressive Filtration Recommendation
For maximum filter efficiency, Gray R-Matala should be installed after Blue Matala media as part of a progressive filtration system. This layered approach allows larger particles to be captured first, while Gray R-Matala removes finer suspended solids and supports biological filtration.
A typical filtration sequence is:
- Black Matala (coarse filtration)
- Green Matala (medium filtration)
- Blue Matala (fine filtration)
- Gray Matala (super-fine filtration and biofiltration)
Progressive filtration helps reduce clogging, improves water flow, and extends cleaning intervals.
Ideal for Barrel Filters and DIY Systems
Gray R-Matala is a popular choice for homemade barrel filters, gravity-flow filters, and custom pond filtration systems. Most standard barrels can accommodate up to three stacked layers of R-Matala, providing up to 18 inches of filtration depth.
Multiple layers of Gray R-Matala can also be used to create a deep-bed biological filter with exceptional biofilm capacity and fine-particle removal.
Hair Algae Considerations
Gray R-Matala is not recommended as the primary filter media for heavy hair algae removal. Hair algae can become entangled within the dense fibers, making cleaning more difficult.
If hair algae is present, consider installing a layer of Black Sheet Matala ahead of the Gray R-Matala to capture larger strands before they reach the dense media.
Cleaning and Maintenance
Routine cleaning helps maintain optimal performance and water flow.
For regular maintenance:
- Use a pond pump with a flexible hose to rinse the media using pond water.
- Flush debris from the surface without removing the coil from the filter tank.
- Frequent light cleanings are easier and help preserve beneficial bacteria.
For heavily loaded media:
- Remove the coil from the filter tank.
- Rinse thoroughly using pond water whenever possible.
- Avoid chlorinated tap water when the media is being used as a biological filter, as chlorine may damage the beneficial bacterial colonies that support biological filtration.
With proper maintenance, Gray R-Matala provides long-lasting mechanical filtration, exceptional biological filtration, and reliable performance in pond and water garden filtration systems.
Gray R-Matala Filter Media FAQs – Installation, Sizing, Cleaning & Biological Filtration
Find answers to common questions about Gray R-Matala filter media, including sizing recommendations,
installation tips, cleaning methods, biological filtration benefits, progressive filtration setup,
hair algae considerations, and maintenance best practices for pond and water garden filtration systems.
What is Gray R-Matala filter media?
Gray R-Matala is a pre-coiled roll of high-density gray Matala filter media that is factory-wound
and bonded into a convenient drop-in cartridge for round filter tanks, barrels, and gravity-flow
filtration systems.
What is the difference between Gray Matala and Black Matala?
Gray Matala is the densest Matala media available and has a dark, dull gray appearance. Black
Matala is shiny black and is the least dense Matala media, designed for coarse filtration and
larger debris removal.
How do I choose the correct Gray R-Matala size?
Measure the inside diameter of your filter tank and select a Gray R-Matala coil that is
approximately 1/2 inch to 3/4 inch larger. This oversized fit helps prevent water from bypassing
the media.
What does Gray R-Matala filter?
Gray R-Matala effectively captures fine suspended solids such as small algae particles, fish waste,
bacterial floc, organic debris, detritus, and uneaten fish food while also providing excellent
biological filtration.
Can Gray R-Matala be used for biological filtration?
Yes. Gray R-Matala provides extensive surface area for beneficial bacteria growth, making it an excellent biological filter media for supporting healthy pond water quality.
Should Gray R-Matala be used with other Matala media?
Yes. For progressive filtration, Gray R-Matala is typically installed after Blue Matala. This arrangement captures larger debris first and allows Gray R-Matala to remove finer particles while supporting biological filtration.
Can Gray R-Matala be used in a barrel filter?
Yes. Gray R-Matala is ideal for homemade barrel filters and gravity-flow filtration systems. Most
standard barrels can hold up to three layers, providing up to 18 inches of filtration depth.
Is Gray R-Matala suitable for filtering hair algae?
Gray R-Matala is not recommended for heavy hair algae removal because the algae can become tangled
within the dense media. A layer of Black Sheet Matala placed before the Gray R-Matala can help
capture hair algae more effectively.
How do I clean Gray R-Matala filter media?
Routine cleaning can be performed by flushing pond water through the media using a pump and
flexible hose. For heavier buildup, remove the coil and rinse it thoroughly using pond water.
Can I use tap water to clean Gray R-Matala?
If the media is being used as a biological filter, avoid chlorinated tap water because chlorine
can harm the beneficial bacteria colonies living on the filter media.
