Iodine Help!

3ncore8

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Hi Randy,
Please help,
Recently I have tested my iodine and found out sky high 0.127 mg/L , I have water change for 2 weeks about 3 times but the iodine still couldn’t lower down, and my SPS was started whitish from the bottom to top (RTN)?? Any way to lower down the iodine ? As currently I have carbon running but seem doesn’t help.
 
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Randy Holmes-Farley

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That value is not sky high. It's only 2x the natural level, and I don't think its any issue. :)

Carbon doesn't bind appreciable iodide or iodate from seawater. That's a myth that, IMO, may be based on the fact that a different chemical (I2) does bind to it and is used as a measure of GAC surface area in some industries.
 

Rick Mathew

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Hi Randy,
Please help,
Recently I have tested my iodine and found out sky high 0.127 mg/L , I have water change for 2 weeks about 3 times but the iodine still couldn’t lower down, and my SPS was started whitish from the bottom to top (RTN)?? Any way to lower down the iodine ? As currently I have carbon running but seem doesn’t help.
May I ask what test kit are you using?

Rick
 
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3ncore8

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That value is not sky high. It's only 2x the natural level, and I don't think its any issue. :)

Carbon doesn't bind appreciable iodide or iodate from seawater. That's a myth that, IMO, may be based on the fact that a different chemical (I2) does bind to it and is used as a measure of GAC surface area in some industries.
Hi Randy,
Where can I get the (I2) product ? Like brightwell ? And how should I use on it ? And sorry I’m new and what is GAC ? Please guide me, thanks randy
 
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3ncore8

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That value is not sky high. It's only 2x the natural level, and I don't think its any issue. :)

Carbon doesn't bind appreciable iodide or iodate from seawater. That's a myth that, IMO, may be based on the fact that a different chemical (I2) does bind to it and is used as a measure of GAC surface area in some industries.
I found that my SPS was turned to this after the iodine is higher. Any advices ? The SPS turn to this then slowly the SPS whitish from bottom part to upper then finally whole coral gone. Attached photo for your advices .
 

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Randy Holmes-Farley

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Hi Randy,
Where can I get the (I2) product ? Like brightwell ? And how should I use on it ? And sorry I’m new and what is GAC ? Please guide me, thanks randy
Lugols contains I2 and I-, but I think dosing the natural forms present in seawater are better, especially iodide which is the most bioavailable form. Potassium iodide or sodium iodide, if you can find it, or many hobby brands.
 

Randy Holmes-Farley

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I found that my SPS was turned to this after the iodine is higher. Any advices ? The SPS turn to this then slowly the SPS whitish from bottom part to upper then finally whole coral gone. Attached photo for your advices .

I do not think that your iodine level is causing the coral problems by being too high. Is that what you are suggesting?
 
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DrZoidburg

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Hi Randy,
Where can I get the (I2) product ? Like brightwell ? And how should I use on it ? And sorry I’m new and what is GAC ? Please guide me, thanks randy
I think randy is referring to a myth based on I2. That is iodometry that measures carbon (gac) surface area. Most of the iodine in seawater is iodide, and iodate.
 
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3ncore8

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Lugols contains I2 and I-, but I think dosing the natural forms present in seawater are better, especially iodide which is the most bioavailable form. Potassium iodide or sodium iodide, if you can find it, or many hobby brands.
Thanks randy, other than this , any others product that after dose can decrease the iodine in my tank level ?
 

Randy Holmes-Farley

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Ok randy, so as per my previously attached photo , any possibility that causing the coral like that ?

At risk of beating a dead horse, no.
 

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