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Does this look like potassium deficiency?

7K views 33 replies 7 participants last post by  YodelMogul 
Plants do use some chlorine but too much would be toxic. Not sure on how much is too much. Tap water has 2-4ppm of chlorine and that generally safe but that’s usually some complex chlorine molecule, not Chlorine ion.
 
I can vouch for that. The tablet form made measuring pretty easy and the 99mg of crushed powder added to my 8 gallon bowl completely reversed the hole phenomenon in my lotus leaves. It also resulted in an algae bloom, but that was relatively easy to bring under control (the bladder snails took it in stride.)
Interesting about the algae. You can probably insert part of the tablet into the soil under the lotus like a root tab, reducing the chance of algae.
 
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