Magnesium Deficiency in Plants

Notes on Magnesium Deficiency in Plants:

Magnesium is a macronutrient.

magnesium-deficiency

Symptoms:
The outer edges of older leaves might turn pale yellow instead of dark green. Deficiencies appear as interveinal discoloration on older leaves. There will be slow growth, and new growth might have dark spots and be yellow.
Sources:
Epsom Salts/Magnesium Sulfate from the grocery store
Notes:
Generally not toxic at higher levels to fish.

Image from wikipedia: http://en.wikipedia.org/wiki/Magnesium_deficiency_(agriculture)

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