50x50x2cm Biochemical Filter Foam Cotton Sponge For Aquarium Fish Tank Pond

Specifications: Color: Blue, Yellow
Hole Type: Mesopore
Material: Biochemical Cotton
Size: (L)X(W)X(H) 50x50x2cm

Features Excellent water permeability.
Can be used again after cleaning.
Can be cut any sizes as your needed.
Suitable for using in freshwater and marine water.
Cultivate the nitrifying bacteria for biological filtration.
Offers good biochemical and physical filtration effects.

Mesopore: It is suitable for fish tank and fish pond filtration.
Mainly used for physical filtration and biochemical filtration.
Use collocation to achieve better effects: fish tank with cotton wool, fish pond with vine cotton.

Warm Tips: Cleaning the foam each month to ensure the permeability and shape.
It is normal to receive the foam that is little deformed, it will recover slowly after entering the water.

Package included: 1 x Filter Sponge