Why don't my plants ever pearl? - Page 2 - The Planted Tank Forum

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post #16 of 24 (permalink) Old 04-12-2006, 12:42 PM
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Pearling after a water change means nothing more than you have dissolved gases in your water supply.

I can take a bare tank and get "pearling" after a water change. And I know that glass doesn't pearl.
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post #17 of 24 (permalink) Old 04-12-2006, 03:26 PM Thread Starter
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yup ... thats why i said that i bet 2 days after the WC, there will be no more pearling
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post #18 of 24 (permalink) Old 04-17-2006, 11:53 PM
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Quote:
Originally Posted by esarkipato
Another question: how is your co2 diffused? Have you read/heard about tom barr's theory of microbubbles? It's basically an argument that by "blowing" tiny bubbles of co2 around the tank the plants will benefit . . . . I think there's some truth.

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I can attest to that! I get lots of nice pearling now after I started using a ceramic disk diffuser placed directly beneath the filter outflow....shoots those tiny bubbles all over the place
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post #19 of 24 (permalink) Old 04-18-2006, 12:53 AM
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i'm kinda a n00b at planted tanks, what does "pearling" mean? and does any 1 have a pic?
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post #20 of 24 (permalink) Old 04-18-2006, 03:14 AM
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Pearling is when these tiny little bubbles of oxygen form all over your plants making them sparkle. Sometimes the plants make so much O2 that there is a steady stream of bubbles coming up from the plant. Sorry I don't have a picture.

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post #21 of 24 (permalink) Old 04-18-2006, 06:05 AM
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like someone stated earlier, pearling only happens when O2 is saturated. If you have a high fish load it may never hit saturation.
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post #22 of 24 (permalink) Old 04-18-2006, 07:00 PM
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post #23 of 24 (permalink) Old 05-01-2006, 05:50 PM
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Bubbles on plants immediately after a water change, or for a day or so thereafter, have absolutely nothing to do with CO2 injection and/or plants producing O2, and hence are not pearling.

Its simply the release of suspended O2 in the water adhering to whatever surfaces are available.

Take a brand new tank, fill it with water, look at the bubbles on the side. Its the same thing.

--
46 Bow, DIY CO2, 125W MH -- Swords, ludwigia, cabomba, spiral vals, dwarf lilly's, java fern, and one mystery plant.
125 Tank 750W MH (unused) -- Catfish ( Asian Sun cat ) and various
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post #24 of 24 (permalink) Old 05-01-2006, 05:52 PM
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JenThePlantGeek,

I heard someone suggest that if you have a plant that produces a steady stream of bubbles from one point that the plant has some sort of minor damage at that point.

I usually have a few plants that do that though most just pearl the normal way.

--
46 Bow, DIY CO2, 125W MH -- Swords, ludwigia, cabomba, spiral vals, dwarf lilly's, java fern, and one mystery plant.
125 Tank 750W MH (unused) -- Catfish ( Asian Sun cat ) and various
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