Black Bio Sponge 50 x 50 x 3cm

Aquarium Fish Tank Black Filter Bio Sponge 35PPI 50X50X3cm


  • The material has great thickness, it is durable.
  • Very suitable for use in freshwater and marine water.
  • Lightweight and soft design.
  • Excellent water permeability.
  • Cultivate the nitrifying bacteria for biological filtration.
  • The dense shape makes it effective in avoiding residue.
  • Can be used again after cleaning.
  • The biochemical filter has the best effect on decomposing the excrement and the forage leftover.
  • Its multi-porous feature will avoid blockages and provide the largest adhesion area for bacteria.

Color: Black
Material: Sponge

Original price was: රු1,600.00.Current price is: රු1,500.00.

4 in stock

or 3 X රු 500.00 with Koko Koko


Black Bio Sponge 50 x 50 x 3cm 35 PPI  (Pores Per Inch) black sponge is a type of sponge filter commonly used in aquariums and other filtration applications. The “35 PPI” designation refers to the density of pores or openings within the sponge material.

Here are some details about a 35 PPI black sponge:

  1. Pore Density:
    As mentioned, “35 PPI” indicates that there are 35 pores or openings per square inch of the sponge material. This level of pore density strikes a balance between providing effective biological filtration and allowing for good water flow.
  2. Material:
    The sponge is typically made of a porous, foam-like material that is safe for use in aquariums. It is usually colored black for aesthetic reasons, as it can blend in well with aquarium décor and background.
  3. Biological Filtration: A 35 PPI black sponge serves primarily as a biological filter. The sponge provides ample surface area for beneficial bacteria to colonize. These bacteria play a crucial role in breaking down ammonia and nitrite, which are harmful to fish, into less harmful nitrate.
  4. Size and Shape: Black sponge filters come in various sizes and shapes to accommodate different aquarium sizes and setups. They can be cylindrical, rectangular, or custom-shaped to fit specific filtration needs.
  5. Usage: To use a 35 PPI black sponge filter, you will need an aquarium air pump and an air tube. The air pump generates air bubbles that rise through the sponge, creating a gentle water flow and facilitating biological filtration. It is usually placed at the bottom of the aquarium, with the sponge located in the tank or submerged in the water.
  6. Maintenance: Regular maintenance is required to keep the sponge filter operating efficiently. Over time, debris and detritus can accumulate on the sponge’s surface, potentially reducing its effectiveness. To clean the sponge, you can squeeze it gently in a bucket of aquarium water to dislodge trapped particles without killing the beneficial bacteria. Avoid using tap water, which may contain chlorine or chloramines that can harm the bacteria.
  7. Advantages: Some of the advantages of using a 35 PPI black sponge filter include its low cost, ease of setup, and effectiveness in providing biological filtration. It is a suitable choice for small to medium-sized aquariums and can be used in breeding tanks and quarantine tanks as well.

When selecting a black sponge filter, make sure to choose one that is appropriately sized for your aquarium’s volume and the type of fish you keep. Additionally, follow recommended maintenance procedures to ensure the longevity and efficiency of the filter.

  • The Biochemical Filter has the best effect on decomposing the excrement and the forage leftover.
  • Good shading features can reduce algae breeding. Moderately holes can cultivate high-density nitrifying bacteria.
  • Strong filterability, can stabilize water quality and reduce fish deaths.
  • Can be used repeatedly after cleaning. Advise to clean it each month.
  • This thickened Biochemical Filter Sponge is tough and durable, suitable to be used in seawater tanks, freshwater tanks, and aqua-plant tanks.
  • This filter sponge provides strong purification for the water, stables the water quality, and reduces fish death. Good shading to reduce algae breeding.
  • Moderately holes can cultivate high-density nitrifying bacteria, which can decompose fish excreta and feed residues, improving water quality.
  • There is many sizes for your choice, and if none of these sizes suit your tank, you could just cut the sponge freely according to your tank as you need.
  • It is suggested to clean it once a month, so there will be no obstruction or deformation, and this sponge can be reused continually after cleaning.

Additional information

Weight0.200 kg
Dimensions50 × 50 × 3 cm


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