Fe EDDHA question

[AquariusPeter]

Hi all,

I have question regarding this product of Chelated Iron Microgranules. I can't really find any information about what percentage that chelator is ?
Following by this link from John q :

https://www.amazon.co.uk/R-SHOP-FC-...9528cad02c9e3f6d9aad92a4c020241c&gad_source=1

I decided to order small amount of Iron EDDHA.

Because i couldn't find any information about if this 6 or 7% i just simply followed by calculatior from roatalabutterfly.com.
For 125 tank i made a solution EDDHA 6%(as it was only this one to chose) and then i've choosen to add 10ml of solution. I've choosen calculate for EiLowLight/Weekly:

To reach your target of 0.1ppm Fe you will need to add 5.21 grams (equivalent to 2 tsp + 1/8 tsp + 1/64 tsp ) of EDDHA Fe (6%) to your 250mL dosing container. Add 10mL of that mix to your 125L aquarium to yield:

Fe	0.1

[th]

Element​

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ppm/degree​

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But i still have no idea if it is EDDHA 6%

I am thinking now from what safe amount i could start dosing this solution???

 

[ElleDee]

I am not the first person to figure out you can dose it by adding small amounts until you see the water begin to take on a pink tint.

 

[Zeus.]

I have dosed Fe EDDHA and it can make the tank quite red, so I ending up dosing like @ElleDee suggested - just so you get the slightest pink - then the Fe EDDHA is still in abundance-job done. As the slight pink fades add a little more

 

[AquariusPeter]

Hi all,

I am not the first person to figure out you can dose it by adding small amounts until you see the water begin to take on a pink tint.

I have dosed Fe EDDHA and it can make the tank quite red, so I ending up dosing like @ElleDee suggested - just so you get the slightest pink - then the Fe EDDHA is still in abundance-job done. As the slight pink fades add a little more

Thank you Guys for your help and suggestions.

Accordingly my calculated solution is 10ml= 0.1mg/l. I'd added 1ml for a try and this suppose to give me Fe 0.01mg/l , before i posted this post.

On Monday I will be doing water change so then I add it more just to get the slightest pink.

Thank you,

Kind Regards,

Peter

 

[dw1305]

Hi all,

But i still have no idea if it is EDDHA 6%

I'd guess that "6%" and "7%" EDDHA are really the same compound. I should have put the reason that in, this is for FeDTPA, but exactly the same applies - <"Calculating with DTPA Fe 8%">

Even if they are different? It doesn't make any practical difference.

Cheers Darrel

 

[AquariusPeter]

Hi all,

Hi all,

I'd guess that "6%" and "7%" EDDHA are really the same compound

Even if they are different? It doesn't make any practical difference.

Cheers Darrel

Thank you for your expertise. Now everything is much more clear so I can start practice with fertilizing. Tomorrow I will be doing water change and after that i will try this solution with TNC Complete and Lite as well.

 

[dw1305]

Hi all,

Now everything is much more clear so I can start practice with fertilizing. Tomorrow I will be doing water change and after that i will try this solution with TNC Complete and Lite as well.

I should have said I'd just use the <"pink tint"> method as well.

Cheers Darrel