Red Sea offers a comprehensive range of 4" (10cm) filter bags designed to fit all REEFER and MAX series aquariums. These bags provide high-capacity mechanical filtration, effectively trapping free-floating particles to ensure crystal-clear water and a healthier reef environment.
Select the ideal bag based on whether you need fine water polishing or long-lasting debris removal.
100 Micron Felt Filter Bags: These fine-mesh felt bags are specifically designed for high-level water polishing, trapping even the smallest particles for exceptional clarity.
225 Micron Felt Filter Bags: An ideal choice for everyday mechanical filtration, these bags offer a balance between fine particle capture and extended time between cleanings.
225 Micron Thin-Mesh Filter Bags: Constructed from a durable monofilament material, these thin-mesh bags are exceptionally easy to clean and provide high flow rates for standard debris removal.
How often should I change my filter bags? The frequency depends on your tank's bio-load. Generally, felt bags should be replaced or cleaned every 3 to 5 days to prevent trapped detritus from breaking down and increasing nitrate levels.
Are these bags reusable? Yes, all Red Sea filter bags are designed for repeated use. Felt bags can be rinsed or machine-washed (without detergent), while the thin-mesh bags are easily sprayed clean with a high-pressure hose.
Will these fit non-Red Sea aquariums? These bags are standard 4" (10cm) diameter units. They will fit most pre-made sumps and filter-sock holders designed for this industry-standard size.
Red Sea Filter Media Cup: A versatile alternative to filter bags that allows you to stack different types of chemical and biological media in your sock holder.
Red Sea REEF-SPEC Carbon: Place a bag of high-quality carbon inside your filter bag to simultaneously remove yellowing pigments and odors.
ReefMat Series: If you are tired of washing filter bags, consider upgrading to the ReefMat automated fleece roller for weeks of maintenance-free filtration.
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