melostvn Posted October 31, 2020 Share Posted October 31, 2020 Hey everyone, I purchased Aquarium Co-op’s nano sponge filter along with the air stone found in the store. I’m looking to attach it to the sponge filter but it does not fit. The opening in the filter is too small companies to the one on the air stone. I watched Cory’s YouTube video on “How to Optimize and Clean a Sponge Filter” and I’m certain I’m installing it the same way or am I doing something wrong? Link to comment Share on other sites More sharing options...
Streetwise Posted October 31, 2020 Share Posted October 31, 2020 You need a little piece of airline tubing to connect the airstone to the inside of the top filter mount: 3 Link to comment Share on other sites More sharing options...
melostvn Posted October 31, 2020 Author Share Posted October 31, 2020 Thank you! I will try that. Link to comment Share on other sites More sharing options...
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