50x50x4cm Medium Hole Fishing Tank Filter Cotton Aquarium Biochemical Cotton Cultivation Filter Material

This is a medium hole fishing tank filter cotton designed for aquariums. It improves water quality by providing effective filtration and cleaning.

• Product type: Filters & Accessories
• Compatibility: aquarium
• Material: cotton
• Key feature: good filtration and cleaning effect
• Intended use: water quality improvement
• Suitable for seawater, freshwater, aquascape, size can be freely cut
• Dense pore gap and softness suitable for cultivating nitrifying bacteria
• Decomposes excrement and feed residue
• Reduces fish mortality
• Wash once a month with water
• No blockage, no deformation
• Can be washed repeatedly
• Thickened material, strong water permeability
• More thorough and detailed filtration