Iron used by plants?

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ldaniel

Aquarium Advice Activist
Joined
Apr 17, 2011
Messages
150
Location
Grand Junction, CO
Hi all,
Happy Easter
I have a question about the amount of Iron in my aquarium.

My Water:
Ferric Iron = 0.57 ppm
Ferrous Iron = 0.01 ppm
Sulfate = 53 ppm
Potassium = 23 ppm
pH = 6.78
Bicarbs = 159 ppm
Salinity = 0.3 ppt
Temp = 78F

My question is which Iron is used more by plants? Ferric (FE3) or Ferrous (FE2)
Thanks
 
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