Wierd burn/crispy spots on leaves

w4kenb4ke said:

Flushed that one today with ~PH 5.9 water, guess that's still a bit high, but it's something. Finished with a weak solution of NPK 5-2-2, and a tiny pinch of calcium nitrate. Right now i'm only testing with that plant, it being the sickest.

There's obviously something wrong with the soil, runoff is always near 7 and won't drop. I was using the same exact label years back and it was top quality. Used up some of the leftovers from that time when i put my sprouts in solo cups. Second transplant was with the new stuff and a week later that one had spots on it, right now 5 plants are getting sick.

Got 2 stunted seedlings that are now growing and still in the cups. These give a 6.3 runoff, no problems there. Same soil, different year.

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Max888888100 said:

I got the clawing just like you my dude. Your humidity is good?

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shrxhky420 said:

I'm a little confused were you ph'ing your water our not? 1st post says tap water at 7 but always ph to 5.8-6.2
Then you say ph is 7.6?

You gotta be diligent with coco. Your plants will react quickly when something is off. Get your ph in order and keep some cal/mag handy.
Those 3 things seem to be the most common issues in coco... at least from what I've seen and experienced

SH420

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