The Planted Tank Forum - View Single Post - Decaying sword leaves
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post #2 of (permalink) Old 11-19-2018, 04:27 AM
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The leaves appear to be showing some chlorosis.For this to be happening in new leaves it must be a deficiency in non mobile nutrients Those nutrients are calcium sulfur and most of the micro nutrients. Equilibrium should resolve a calcium sulfur deficiency. Iron is a possibility. Iron is another possibility if your PH is above 6.5. If you are using a liquid test kit you might not be able to read it accurately. If you don't have one get a digital PH pen. The only other thing I can think of is increasing your CSM+B dose If you are using a CSM+B solution you might want to try dry dosing instead of solution dosing. Maybe the solution bottle was mixed wrong or the PH in the bottle is bad and the CSM+B may have degraded.
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