pedrofisk Posted September 14, 2020 Share Posted September 14, 2020 I am looking to make 8 to 10 Matten filters myself rather than buy them for 10g aquariums on the narrow end. 10.75" x 11.75" x 2″ should do it. I have been looking up sources for the sponge with a medium or course PPI but have come up short. Aquarium Coop does not sell them except for their 9x9 which is too small so I think it is ok to ask on the forum. I have looked through Ebay and Amazon but I have either not been happy with the size or I know I'd have to buy a few to get the right one. Anyone have any experience? Link to comment Share on other sites More sharing options...
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