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Carbon. Going over facts and myths.
Here's a YouTube video from Reef.com on Carbon/Activated Carbon. In this video, they visit Coconut Creek, Florida and talk to the guys at Chemipure to get more info and possibly debunk some myths that's going around.
I have an air stone, but only use it as a battery back up....
There will be an issue with salt creep and there has been mixed reviews about it affecting your tanks PH. But on the other hand folks use them for micro bubble scrubbing