Pearling - how soon? - The Planted Tank Forum
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post #1 of 5 (permalink) Old 03-01-2011, 09:46 AM Thread Starter
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Location: England
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Pearling - how soon?

How soon in a plants day cycle would they start to pearl and produce visible oxygen bubbles? Currently my plants start pearling roughly 4 hours after lights and CO2 go on in the morning.

Is it possible to have plants pearling sooner, straight away as soon as the lights switch on in optimal conditions? Or is it a natural process it needs to go through which takes time before the pearling starts?

Just wondering if I need to adjust my CO2 so that it's optimal when the lights go on (currently CO2 is switched on 2 hours before lights).
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post #2 of 5 (permalink) Old 03-01-2011, 12:05 PM
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My plants generally start pearling anywhere from 4 hours to 6 hours after the lights come on.
I am eager to know the same thing as you.
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post #3 of 5 (permalink) Old 03-01-2011, 01:54 PM
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riccia within an hour or two, the rest start around 4-6 like mentioned.

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post #4 of 5 (permalink) Old 03-01-2011, 09:32 PM
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Doesn't this also depend on the oxygen level already present in the tank? That the water has to be "saturated" with oxygen for pearling to occur? So a tank with lower oxygen levels will take longer to pearl than a tank with a higher oxygen level. I'm completely a novice, so I'm really not sure. And my 65gallon with co2 has never pearled.
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post #5 of 5 (permalink) Old 03-02-2011, 02:33 AM
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It seems as though 4 hours or so is a good estimate. Mine always pearled for the 3 days after I did a water change.
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co2, pearling

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