Quote Originally Posted by stinkyattic
MG preferted soil... RO water... yikes... there's the culprit!!!
did you know that tap water that has calcium in it can actually help prevent a precipitous drop in pH from toxic salt buildup? Calcium Carbonate, or CaCO3, limestone, is a neutralizing agent for acids!
I honestly think that using RO water is not a good idea. Especially if you are not adding CalMag plus! That's very important... you have to replace the Calcium and Magnesium if you use RO or distilled. And a calcium deficiency can cause weird blotches and necrosis like you have.
sounds like the culprit to me. Great info stinky attic, thanks -KB