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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
I dont see an issue there are some youtube videos of Pico reefs and vase reefs using only a air stone check out vase reefs on youtube aside from salt creep as a negative they do add to circulation
and i do use a battery back up air stone pump when i have power outages but i guess they werent long enough to see any real negative effect