Due to the volume of the sponges, we will squeeze it for better transportation. It will come back to its size after you put the sponge into water for a while. Please take care to place the order if you mind. Thanks very much for your kindly understanding.

Features:

Biochemical sponge filter provides biological filtration to the aquarium, helps to stable water quality.

Increase the oxygen solubility.

Working noiselessly, very durable, can be used for years,can be cut any sizes as your needed.

The material has great thickness, it is durable,good permeability, easy to clean.Can be used again after cleaning

Perfect filters accessories for your tank and aquarium.

100% brand new & unused
Speicificaitons:

Product name: Aquarium Sponge Filter

Color: Black (Show as picture)

Sponge Size: 50cmx50cmx2cm/50x12x2cm/100x12x2cm/40x30x2cm/40x30x3cm/45x45x3cm/30x30x4cm/30x50x2cm/30x50x4cm/100x100x0.5cm/50x50/0.5cm

Hole size: small hole(high density), M: medium hole, L: large hole   (L size is the coarsest one)

Usually we will send out sponges with holes like this: Small Hole: 50~60PPI, Medium Hole: 35~40PPI, Large Hole: 25~30PPI. Please kindly note.

Reminder:

1. Soak the sponge in the aquarium water for 5 minutes before use, by doing this will help nitrifying bateria colonise easier.

2. Always use aquarium water under room temperature to rinse clean the sponge, never use hot water.
3. It must be used through connecting the air pump.

Including:
1pcs Aquarium Biochemical Sponge Filter