Originally Posted by Thanks
You know you need to up the dosage/rate of dosing when your plants turn yellower, and you know you're dosing too much when you have algae.
No, you don't get algae from excess Fe, that is simply and plainly wrong.
You have something else going on if you add traces and get algae.
I have been adding high amounts of all sorts of various trace brands at extremely high, certainly FAR beyond anything remotely limiting to my aquariums, as others have as well, for decades, I see no evidence whatsoever of algae being related to trace dosing or excesses.
I have no algae when I dose excess.
You might not have enough NO3, K, GH, CO2 etc.
Yellow/pale color is most often low NO3, not low Fe.
Test kits do not tell you what you need to know: are the plants getting enough Fe or any other traces.
I would suggest using a broad spectrum product with all the traces, not just Fe. Plants do use other traces beside Fe.
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