POLL: Salifert or Hanna for testing iodine?

[ZoWhat]

Which one is more accurate and/or more preferred for testing Iodine:

 

[Spare time]

Salifert. I can't find if the hanna one reads iodide or iodate. It is also a test kit you shouldn't need to use that frequently so I wouldn't spend a tremendous amount on one.

 

[Scorpius]

Neither. I don't test for it and see no need to.

 

[sublime275]

Hanna doesn’t make a checker to test for iodine in saltwater.

 

[Randy Holmes-Farley Verified Community Expert]

Hanna doesn’t make a checker to test for iodine in saltwater.

It's not just a seawater issue, it tests the wrong chemical form (I2) and couldn't accurately detect NSW levels even if it worked in seawater and even if it detected the right form.

 

[ScottR]

My ICP tests always come back at zero for iodine. I don’t see why so much effort is put into sustaining a certain number. Zoas and acros both have great coloration and growth.

 

[windemerejack]

I never tested once for iodine and tank did fine, so i would say neither.

 

[ZoWhat]

@Randy Holmes-Farley

So bottomline is I'm dosing nightly SeaChem Iodide .... not iodine.... all bc i have a 6ft 180g packed with zoas/Palys.

I want to test for Iodide so I can understand: 1) the consumption rate and 2) that I'm know I'm not overdosing .

sorta hard to get daily consumption rates on ICP tests.

Looks.like SeaChem is the only one test Iodide separate from Iodine

How accurate are these SeaChem iodide test? I mean I know they only give you a certain range. Just trying to understand if they are a waste of time/money if they are inaccurate

 

[Randy Holmes-Farley Verified Community Expert]

@Randy Holmes-Farley

So bottomline is I'm dosing nightly SeaChem Iodide .... not iodine.... all bc i have a 6ft 180g packed with zoas/Palys.

I want to test for Iodide so I can understand: 1) the consumption rate and 2) that I'm know I'm not overdosing .

sorta hard to get daily consumption rates on ICP tests.

How accurate are these Salifert iodide test? I mean I know they only give you a certain range. Just trying to understand if they are a waste of time/money if they are inaccurate

I don't know how accurate the Salifert kit is, but, IIRC, I used it years ago to track the drop when I was dosing.

 

[ZoWhat]

IIRC

I'm ignorant on what this is

 

[Randy Holmes-Farley Verified Community Expert]

I'm ignorant on what this is

If I Recall Correctly.

It was about 18 years ago. lol

 

[ZoWhat]

If I Recall Correctly.

It was about 18 years ago. lol

Omg... im.so stupid..I was thing IIRC was some kind of test kit.

Lololololololololol

 

[Harold999]

I never tested once for iodine and tank did fine, so i would say neither.

Fish need it, just like us. If it's not in their diet it should be in the water.

 

[Randy Holmes-Farley Verified Community Expert]

Fish need it, just like us. If it's not in their diet it should be in the water.

But of course, it is in their food. Meaty and algae seafoods all contain substantial iodine.

It is poorly understood in the scientific literature, as far as I know, how much, if any, iodine from seawater is taken up by fish getting normal marine foods.

 

[mindme]

Neither. I don't test for it and see no need to.

I dose it and it makes a difference.

 

[Randy Holmes-Farley Verified Community Expert]

I dose it and it makes a difference.

What exactly do you dose and what difference do you see after dosing it? Have you ever stopped and looked for a change?

Some people making such claims are using complicated solutions such as Lugols, which can have far ranging effects on the solubility and bioavailability of other trace elements (e.g., iron) unrelated to iodine itself.

 

[mindme]

What exactly do you dose and what difference do you see after dosing it? Have you ever stopped and looked for a change?

Some people making such claims are using complicated solutions such as Lugols, which can have far ranging effects on the solubility and bioavailability of other trace elements (e.g., iron) unrelated to iodine itself.

I'm just dosing iodide. One of my montipora especially tends to turn pale white on the older parts, like it's fading. Then it'll even turn brown. It's the lifted parts on the old growth that tend to do it first. Now I dose idoide weekly and the issue seems to go away.

I have increased my trace elements in my 2 part, so that also could have been a factor. But it happened before and I dosed only iodide and it seemed to do better.

I think skimmers remove it from what I've read, and I don't do water changes.

 

[Randy Holmes-Farley Verified Community Expert]

I'm just dosing iodide. One of my montipora especially tends to turn pale white on the older parts, like it's fading. Then it'll even turn brown. It's the lifted parts on the old growth that tend to do it first. Now I dose idoide weekly and the issue seems to go away.

I have increased my trace elements in my 2 part, so that also could have been a factor. But it happened before and I dosed only iodide and it seemed to do better.

I think skimmers remove it from what I've read, and I don't do water changes.

Thanks.

FWIW, skimmers cannot remove significant iodide or iodate itself, but skimmers remove certain organics and particulates including whole plankton, so if those have incorporated any iodine, iodine will be exported. Some data suggests iodine in skimmate is elevated, and that would be the reason.