This chemical filtration media is perfect for your tank if you are aim is to reduce the nitrate / nitrite levels in your aquarium water.

These sponges are designed to remove unwanted dissolved waste in your aquarium, aiding in the reduction of nitrate / nitrite.

Features
Suitable for fresh and salt water aquariums.
Suitable for wet / dry, trickle, external cannister, internal, hang on and pond filters.
Before use: rinse filter media through until the water runs clear.
Dimensions: 32 x 12.5 x 1.2cm

Directions: Cut to size and replace every 2-3 months.