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Hi guys, my Amazon’s have started fading and blacking around the edges, is it a nutrient deficiency or light deficiency? I have a fluval aqua sky on for a 1 hour sun rise and 1 hour sunset with 6 hours of 70% sun. Using root tabs aswell, Any help will be greatly appreciated
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Nutrient deficiency, could be potassium or magnesium, could be calcium or iron.

Do you use a liquid fertilizer in combination with your root tabs? Generally, I provide NPK+macros in liquid form and use root tabs for micronutrients.
 
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