Nitrogen Toxicity?

Not sure for coco but my soiless ph in flower is suppose to be 6 to 6.5, I would suspect yours should be the same. 5.8 is good for veg actually 5.5 to 6.0

Thanks man

That's if your on the 5 scale not the 7 ,,,5 scale doubles for ec reading. Ec is always the same so its good to talk ec when asking

Meant to say ph in is 5.8 and runoff also 5.8 so all good there

I always fed till now, never with just water. Been feeding at 800ppm but prob not enough runoff, checked runoff 2 days ago and it was 1200pm. Some build up but not ridiculous, so for last 2 feeds I gave just water (250ppm ph) but haven’t seen much change

Your tds for early flower should be 1.2 to 1.4ec later mid flower 1.6 to 1.8 late flower back to 1.2

Well it's pretty hard to overwater in coco. Are you giving it a break from feed every 3rd feed or so? Have you been checking your runoff for ph and tds

Pic 3 of 4 shows it the most

Hi thanks for your answer :) it’s coco so I let it dry to about 50% then feed.

I dont see a nitrogen toxicity, to me it just looks like you may be over watering. Are you letting the medium dry between waterings? Cheers friend