The Planted Tank Forum - View Single Post - Question about Green Cabomba bubbles.....
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post #2 of (permalink) Old 02-09-2013, 09:54 PM
hedge_fund
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Join Date: Jan 2006
Location: Greenwich, CT
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Your plant is pearling which means that it's producing oxygen. It looks like the plant is damaged in that spot so that's where the O2 is escaping from.

When you add clean water it tends to be saturated with co2 which the plants love. When plants are happy they pearl like crazy.
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