What are this called ?

  • We are currently upgrading MFK. thanks! -neo
They are bio balls and they are round.They are made that way to provide more surface area for the bacteria.
 
I have a 50g trash bag full of these if anyone wants?

Sent from my DROID RAZR using MonsterAquariaNetwork App
 
I have a 50g trash bag full of these if anyone wants?

Sent from my DROID RAZR using MonsterAquariaNetwork App

Ship em to me so I could use em when I upgrade my filter.


Sent from my iPhone using MonsterAquariaNetwork app
 
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