3x Foam Cotton Pad Fish Tank Pond Aquarium Filter Mat Media Biochemical Sponge

Feature:
Cotton filter for fish tank, double-layer designed, is dense and fine for water purification.
Can quickly adsorb ammonia, nitrite, nitrate, phosphate.
Energy medium to strengthen nitrification, stable ecology can be rapidly established.
Can be long-term stored in a dry place!

Specification:
1Material: Biochemical cotton
Color: light green
Product weight: about 52 g
Product size: About 120 * 30 cm 

Package Includes
3x Filter Biochemical Cotton