The Planted Tank Forum - View Single Post - Mr clean magic eraser does the job !
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Old 12-04-2012, 05:14 PM   #18
CytoEric
Algae Grower
 
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Quote:
Originally Posted by james1542 View Post
If these are just micro sponges, then wouldn't they be amazing filter media?
They're so dense...I'm not sure what kind of flow you'd be able to get through them...
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