The lower leaves rot away.

Андрей

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Dec 9, 2021
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Tell me, please, what could be the problem?
Good CO 2 light is present. I lower the pH by 1.2. 30 Nitrate and 5 phosphate are dosed per week, Micro-0.3 for iron. The lower leaves of Ludwig are dissolving for some reason. At the end of the week, a green fuzz appears on the glasses. Could there be a nutritional deficiency at this dosage? Tell me, please, what am I doing wrong?
 

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Allwissend

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Difficult to say without proper quantification. At first glance a guess would be that the Ludwigia is crowded especially at the lower levels. Plant one stem alone in an open place and see if the leaves continue to dissolve.
 
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