When is dosing too much iron??? - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 09-03-2014, 05:36 PM Thread Starter
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When is dosing too much iron???

I think I need to dose some extra iron because my chainwords are beginning to turning white and transparent. Currently, I am dose about .5ppm of iron, combination from dosing trace and Fe 11% separately. Should I target 1ppm instead? I have a dirt tank with a generous amount of lateriate in it...

Here is my 40g tank and I think my blyxa is sucking out all the iron....


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post #2 of 9 (permalink) Old 09-03-2014, 06:38 PM
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How do you know for certain it's an Fe deficiency? It could easily be an N deficiency or something else. What are the other fertilizers?
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post #3 of 9 (permalink) Old 09-03-2014, 06:58 PM Thread Starter
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Originally Posted by Solcielo lawrencia View Post
How do you know for certain it's an Fe deficiency? It could easily be an N deficiency or something else. What are the other fertilizers?
It can't be NO3 because I dose about over 10ppm+ per dosing, adding whatever NO3 I have in the tank already. I am going to dose at 1ppm of Fe per dosing or dosing .5ppm per day, in the morning. I used to dose Fe at night, when I added other ferts. These are supposed to be 11% chelated Fe.


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post #4 of 9 (permalink) Old 09-03-2014, 08:27 PM
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What about the other nutrients such as Mg?
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post #5 of 9 (permalink) Old 09-04-2014, 04:12 AM
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Looking at the robust, healthy plants you have, you could be running short on nitrogen, potassium, or phosphorous. Fast growth means the plants need a lot of NPK to feed that growth.

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post #6 of 9 (permalink) Old 09-04-2014, 06:48 PM Thread Starter
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Looking at the robust, healthy plants you have, you could be running short on nitrogen, potassium, or phosphorous. Fast growth means the plants need a lot of NPK to feed that growth.
I am actually already on the heavy size in EI dosing. My NO3 is from 20ppm+ to 10ppm+ in between each dosing day. I think K is fine since my hygros aren't showing little holes on the leaves. With phosphate, I am actually dosing more than usual in order to combat GSA. I add about 5ppm of phosphate per dosing. I tend to experience GSA outbreak when my phosphate is below 5ppm. So, iron is the limited nutrient here.

I am dosing with 11% chelated Fe in a bottle solution. The iron shouldn't precipitate? So, I don't need to add iron daily.

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Originally Posted by Solcielo lawrencia View Post
What about the other nutrients such as Mg?
I added 2.5ml of mg (2ppm) right after each WC and I do 2 60% WC per week.


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post #7 of 9 (permalink) Old 09-04-2014, 06:54 PM
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Do you have close up shots of the white leaves? Are they older or newer leaves?
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post #8 of 9 (permalink) Old 09-04-2014, 08:43 PM Thread Starter
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Do you have close up shots of the white leaves? Are they older or newer leaves?
They are usually the older ones. I am not going dig out my DSLR for it. The leaves turning transparent without any sign of melting. Is like all the green is gone and leaving a partially transparent leaves. These same chainswords would do fine in my low tech, low EI, excel tank though, but growing slower and smaller. I find their grow a bit abnormal. The leaves are getting too unusually long, over 5" tall. In the past (I have them for few years), they were used as foreground plants. I guess with my dirt tank, heavy EI dosing, and heavy CO2, they got huge. I am going to continue with dosing some daily Fe to see if it would stop the transparenting. If not, I would just remove them if they get ugly.


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post #9 of 9 (permalink) Old 09-04-2014, 10:53 PM
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If only the older ones are turning transparent then it is definitely not iron deficiency which shows up only in new leaves.

More likely to be nitrogen or another mobile nutrient deficiency or another problem, but it is not possible to say which one without close up photos.
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