My TDS tester


Sorry but being part blind doesn't help. I have a Health Metric TDS tester with PPM and EC . My master blend when tested comes to 659 on ppm and 1381 on EC I don't know which to use as my bok choi was doing great and now I have brown edges on some leaves . Is my mixture off as I feel and what is a good range for ppm for bok choi.

Thanks Chuck

Comments for My TDS tester

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Aug 18, 2019

by: Stella

Hi Chuck,

I'll be honest with you, I have never grown bok choy in hydroponics. I did a little research and although there were some discrepancies, I think an EC of 1.5-2.5 and PPM of 1050-1400 should work.

As far as brown edges on the leaves, this usually indicates the Nutrient might be too strong [flush with clean water and mix a new batch]. Keep the EC/PPM of your nutrients on the low side.

Hot dry air can also burn leaf tips.

Hope this helps!
Stella

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