Micronutrient toxicity.. or deficiency.. ? Pls help.

[rusticdr]

I think this could be a consequence of how you dose the fertilizer!
Not how much
hoggie

Hi.. been a while.. anyway thanks for the reply. But before I go on to what has happened after this thread I would like to understand what u mean by how u dose ur fert? Is that like whether I premix or directly add them to the tank? Not very clear.
Anyway I am going out on a limb to say that what I experienced was def nutrient toxicity. In the beginning it was micro and later on the rotala burn was due to high nitrate. I have even had high phosphates killing off a few plants although not as bad as nitrates.. and I am a pathologist by profession (MD).. what I am trying to say is that I have observed these changes in unbiased scientific manner as possible and have concluded thus.
Now.. I have completely torn down the scape and have rescaped it. I have started with a very restricted macro and micro dosing. And with the same or albeit lesser amt of co2 the plants are thriving. Ludwigia senegalensis used to die a gruesome death in my previous 5 or so attempts.. shooting off leaves now. Walichi s tip just burnt away earlier and now its pink and lush. All the plants look healthy..
I am not denying that co2 is a key key factor.. but I am also convinced that the plants need very little ferts to do really well. Have subsequently planted more densely yesterday with a mc carpet and staurogyne repens at one corner. Will update as and when they grow bigger.

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[G H Nelson]

Hi
I think this could be a consequence of how you dose the fertilizer!
Not how much

On occasions if I dose Liquid Micro fertilizers too near certain plants...they tend to get burnt shrunken leaves!
Especially Rotala sp rotundifiola!
hoggie

 

[rusticdr]

Ok.. got your point. Its a 100 gallon tank with 21 inches height. So the ferts are delivered on the water surface and there is now way of directly hitting one specific plant. And I observed these changes at various positions in the tank, that's how I concluded that co2 was not the cause. I understand that there will be a lot of opposition to my findings.. but this was just my experience. And I use dry ferts for macros and flourish for micros. After a long time I saw pearling today even at the corners where light was not that strong. So I am really looking forward to growing these plants in a healthy manner..

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[G H Nelson]

Ludwigia senegalensis a difficult plant to cultivate needs soft water parameters.
Ludwigia senegalensis - Senegal-Ludwigie - Flowgrow Wasserpflanzen-Datenbank
hoggie

 

[rusticdr]

That post was in german.. but anyways my point is that not only senegalensis, several other plants like aromatica and even rotala had the same fate in my tank earlier. But I may be counting my chicks before they have hatched. Let my plants grow well and then I will show u before and after pics. Then probably I can justify better what I am trying to say. Not saying that this is the absolute truth.. its what I experienced.. it took me 4 yrs to figure this out. And I almost gave up at one point. But now with this new hope I keep looking at my tank any moment I am in the house which is actually driving the missus mad. Will keep this page posted.

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[rusticdr]

Some snaps I took yest.
Rotala h ra.. emerged form
Myriophyllum mattogrossense and Hygrophila difformis
Hydrocotyle tripartita honda and Lobelia cardinalis
Full tank shot with MC carpet just planted.

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[sparkyweasel]

That post was in german

If you click the little Union Flag at the top left corner of the page, it will change to English.