Strange Bubbles - The Planted Tank Forum
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post #1 of 11 (permalink) Old 11-03-2019, 09:42 PM Thread Starter
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Strange Bubbles

My anubias plant has started real easing large amounts of bubbles right after a tank change. I am not sure why but the stem was cut about a week ago
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post #2 of 11 (permalink) Old 11-03-2019, 11:58 PM
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Plants do this when they are damaged. Its pretty normal. I believe this is all oxygen, meaning the plant is releasing oxygen faster then what can be easily absorbed by the water column. I can't tell you why they do it.
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post #3 of 11 (permalink) Old 11-04-2019, 01:41 AM Thread Starter
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Interesting. It stopped about 15 minutes after the change and all seems to be good.
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post #4 of 11 (permalink) Old 11-07-2019, 01:21 AM
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Strange Bubbles

Its cslled pearling, it also happens in high light tanks when the water reaches oxygen saturation.

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post #5 of 11 (permalink) Old 11-13-2019, 01:43 PM
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Quote:
Originally Posted by BOTIA View Post
Its cslled pearling, it also happens in high light tanks when the water reaches oxygen saturation.
Pearling (the phenomenon you described) and streaming (the phenomenon that was pictured in the original image in this thread) are different.



A steady stream of bubbles is more indicative of streaming, rather than pearling (which would come off as large bubbles, slowly).

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post #6 of 11 (permalink) Old 11-13-2019, 06:24 PM
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Quote:
Originally Posted by Darkblade48 View Post
Pearling (the phenomenon you described) and streaming (the phenomenon that was pictured in the original image in this thread) are different.



A steady stream of bubbles is more indicative of streaming, rather than pearling (which would come off as large bubbles, slowly).
Actually it's the same thing with a different cause. High light tanks pearl because of O2 saturated water, damaged plants also pearl after water changes because of gas saturated water from being pressurized in pipes. Same thing different cause. ..

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post #7 of 11 (permalink) Old 11-13-2019, 06:52 PM
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Actually, it's not the same thing. Damaged plants will do this regardless of whether or not there's a water change. Damaged plants will typically do this regardless of where they are in the photosynthetic process.

"Pearling" as we use it in this hobby is referring to excess oxygen production created via photosynthesis.

If you need further clarification, feel free to use the search function here on the forum. Several discussions about this topic going back several years. Lots of information on other sites, as well.

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Originally Posted by BOTIA View Post
Actually it's the same thing with a different cause. High light tanks pearl because of O2 saturated water, damaged plants also pearl after water changes because of gas saturated water from being pressurized in pipes. Same thing different cause. ..


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post #8 of 11 (permalink) Old 11-13-2019, 07:02 PM
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Actually it's the same thing with a different cause. High light tanks pearl because of O2 saturated water, damaged plants also pearl after water changes because of gas saturated water from being pressurized in pipes. Same thing different cause. ..
Its really not the same thing. I mean yes, both are clear bubbles of an invisible gas releasing from a plant and floating to the surface of the water. But its sort of like comparing murder to someone who dies of natural causes. Sure they're both dead, but still not the same thing.

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post #9 of 11 (permalink) Old 11-13-2019, 10:29 PM
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Originally Posted by somewhatshocked View Post
Actually, it's not the same thing. Damaged plants will do this regardless of whether or not there's a water change. Damaged plants will typically do this regardless of where they are in the photosynthetic process.

"Pearling" as we use it in this hobby is referring to excess oxygen production created via photosynthesis.

If you need further clarification, feel free to use the search function here on the forum. Several discussions about this topic going back several years. Lots of information on other sites, as well.
No thanks I've been keeping fish for over 40 years and a have background in chemistry etc. # posts does not make one an expert...
Pearling from synthesis does not create bigger bubbles that ones than damaged plants which equalize and offgass, my larger planted tanks all pearled the same tiny streams of bubble into the daily cycle.
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post #10 of 11 (permalink) Old 11-13-2019, 10:41 PM
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The only thing common about "streaming" and "pearling" is that you are seeing oxygen because the plant is releasing it at a faster rate then it can be absorbed, Got nothing to do with how oxygen saturated the water column is. For example, if you didn't have pearling in your tank and you cut a stem (especially in a co2 supplied tank) you'll see the streaming. The tank didn't all of a sudden become oxygen saturated. Same thing with true pearling. It's the rate the oxygen is being released.


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post #11 of 11 (permalink) Old 11-14-2019, 12:02 AM
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Good for you for being in the hobby for 40 years. That's quite a long time. But... no one said anything about number of posts or how long they've been keeping tanks. Though, for me, it's more than 30 years.

No one insulted you. There's no need to get defensive.

My comments still stand: Damaged plants will do this regardless of whether or not there's a water change. Damaged plants will typically do this regardless of where they are in the photosynthetic process.

"Pearling" as we use it in this hobby is referring to excess oxygen production created via photosynthesis.


Streaming and pearling aren't the same thing. They don't occur for the same reason. People reading this can do their own research/searches and come to their own conclusion based on fact.

Note that @Darkblade48 works in the scientific field. So he comes at this with actual science, not just personal experience.

Quote:
Originally Posted by BOTIA View Post
No thanks I've been keeping fish for over 40 years and a have background in chemistry etc. # posts does not make one an expert...
Pearling from synthesis does not create bigger bubbles that ones than damaged plants which equalize and offgass, my larger planted tanks all pearled the same tiny streams of bubble into the daily cycle.
Regards


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