About This

• Guaranteed Compatibility Fit: compatible with FX4/FX5/FX6 filters, these phosphate remover pads maintain exact 17.8x17.8x1.6cm dimensions for seamless installation; Engineered as precise FX4 replacement parts and FX6 replacement parts, they prevent bypass gaps while integrating with existing media trays; Ensures full water contact for effective phosphate adsorption without compromising flow rates
• Sustained Filtration Performance: the open-cell foam structure minimizes clogging while maximizing contact time with water; Supports consistent flow rates even during high-bioload periods; Works synergistically with other FX4 filter media stages to manage nutrients without disrupting biological filtration stability
• Targeted Phosphate Control: these pads actively adsorb phosphates that contribute to algae growth in freshwater and marine tanks; Ideal for reef systems or planted aquariums requiring low-nutrient conditions; Replaces every 4-6 weeks to maintain optimal water clarity and reduce maintenance frequency
• Visual Maintenance Tracking: the vibrant green color allows instant identification among filter layers; Simplifies media checks during routine maintenance for FX5 or FX4 filter media stacks; Provides visual confirmation of pad placement while adding no dyes or colorants to aquarium water
• Extended Performance Stability: safely manages phosphates in coral reef systems with sensitive invertebrates and freshwater habitats; The 12-pack quantity ensures a consistent supply of FX4 replacement parts needed across multiple tanks or extended maintenance schedules