Why do i need to soak purigen in buffer? - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 10-08-2015, 09:41 PM Thread Starter
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Why do i need to soak purigen in buffer?

I know that bleach has a high ph and the buffer lowers it, but couldn't I just soak the purigen in ro or tank water to help lower the ph, and if there is no bleach in it it after a dechlorinator soak why would the oh still be an issue?
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post #2 of 6 (permalink) Old 10-08-2015, 09:47 PM
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Bleach technically has only temporary effects on pH. It temporarily raises the pH and after the chlorine starts to evap it goes back down. Personally, I don't 'buffer' purigen post a bleach soak, just go through and either let it soak in clean water for 24 hours or in most cases place in a gallon or so of water and over dose Prime to detox the chlorine.

Where did you read to buffer the tank? I've not had to do this?


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Last edited by Tihsho; 10-08-2015 at 09:47 PM. Reason: edit
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post #3 of 6 (permalink) Old 10-08-2015, 11:01 PM Thread Starter
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It says to do this here Seachem. Purigen
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post #4 of 6 (permalink) Old 10-08-2015, 11:55 PM
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I understand that Seachem has since removed any mention of the need to buffer in its directions on regenerating.
I've never buffered and have used Purigen in 2 tanks 24/7 for 5 years with no hint of any problem.
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post #5 of 6 (permalink) Old 10-09-2015, 01:07 AM
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I have never soaker Purigen in a buffered solution.
Rinsed well after bleach and dosed with prime only.


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post #6 of 6 (permalink) Old 10-09-2015, 05:41 PM
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As I understand it, from reading Seachem's support forums, they initially added the suggestion to buffer after some tanks experienced pH spikes (high pH) with regenerated Purigen...

However, they later found that the actual culprit was the chlorine in common bleach products had increased. After increasing the suggested dose of prime, the pH buffering wasn't really necessary anymore..

That said, they still keep the suggestion around, and it is probably a good idea if you are using very low KH water that can be easily swayed...

Post #3 is of interest in this thread:

Purigen Question(s) - Seachem Support Forums

and the Seachem post at the end here is of interest:

Regenerated Purigen Causes pH Crash - Seachem Support Forums

New to planted tanks, avid gardener/tinkerer.

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