03-23-2015, 01:27 PM
Join Date: Oct 2010
Location: The Netherlands
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| | Re: How to Diagnose Plant Deficiencies - Step by Step Guide
Great write up! One thing, about the potassium and pinholes in Hygrophila. Have you ever solved it with potassium? I've had it in 3 different tanks and because everybody always tells you it is potassium, I daily dosed 10 ppm. Pinholes kept popping up, just like in this picture:
I even sent water to a testlab. Potassium >72mg/L
I measured low phosphate in all 3, so I increased that and no more new holes.