Corbidorbidoodle Posted May 10, 2022 Share Posted May 10, 2022 So, once, in some video, I saw Cory messing with these 3D printed collars for aerating sponge filters. It looked like they hooked on between the housing and the up-tube. Then you'd run the air line to it and it'd diffuse the bubbles evenly into the tube. Is there something like that currently on the market? I've been trying to google it, but maybe I'm not using the right words. Or maybe it doesn't exist... Seems like it'd be a great piece of kit. Have any of you seen anything like that? Link to comment Share on other sites More sharing options...
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