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

This item is a small hole fishing tank filter cotton designed for aquariums. It is suitable for cultivating nitrifying bacteria.

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