first, I would turn off your skimmer for awhile and see what the micro bubble's do.
if they start to dissapate I would put the problem to your skimmer. If they keep going at full pace, I would start looking at the return pump. Perhaps borrow one from someone else and hook it up to see if the return pump is creating the bubble's. If it persist's perhaps check your plumbing for minute leaks that may be letting air into the system.
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Two clownfish were in a tank. One says to the other, how do i drive this thing?
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