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Re: [APD] Aquatic-Plants Digest, Vol 25, Issue 25
Thomas Barr wrote:
> Nope, with respect to a red plant vs a green plant, why would anyone need to dose more iron red plant.
I don't know. I'm not even sure why you are asking the question. I don't
know how you got from a suggestion to check iron levels to the
conclusion that I meant red plants needed more iron than other plants.
I thought it might be a good idea because the poster didn't specify what
the other plants were, and since the light and CO2 were good, that
leaves open the possibility that the discolored plants are the faster
growing plants. Any deficiency would show up in the faster growing
plants first. Iron is an immobile nutrient which makes deficiencies show
up in the new growth first (i.e., the tops, as the poster reported).
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