Used fish filter media, 500g

This is the filter media that was used.
It has been washed with water and dried in the sun. Diameter approximately 1.5 x 1.7-1.8 cm.
There are some chips, so I will include about 20g extra. Approximately 200 pieces.

This is a used item, so please understand this before purchasing.

Will be shipped via YuYu or RakuRaku Mercari便 (anonymous shipping).

#Freshwater fish
#Killifish
#Carp
#Water quality management
#Aquarium keeping