Never seen this before any ideas

This is Mac and cheese from big Budda farms. I do what I always do regards growing but never seen this over night. Any ideas?

Twisting of the new growth indicates ph problems, drooping leaves indicates overwatering. Overwatering could be your issue with ph. Are you checking your ph when you water and I hope you’re not feeding nutrients already?

keep it real. said:

Twisting of the new growth indicates ph problems, drooping leaves indicates overwatering. Overwatering could be your issue with ph. Are you checking your ph when you water and I hope you’re not feeding nutrients already?

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Thanks for your reply man. I'm watering very little like half a litre maybe once a week, in saying that this happened after the watering. I wasn't checking the pH, I'm used to it being on point. So I'll definitely check that out and won't water for a while. Also I'll stop the feed, was only giving it a small amount.