Struggling with deficiencies (nutrient lockout?)

Unfortunately I don’t have the tool to measure soil pH. I always add my nutrients to the water and then fix the pH but somehow it ended up in this state. Tomorrow morning I’ll flush them and hope for the best o_O

Hear is a great pick of difitencys but make sure you know why your defitency probably nutrient lock out https://www.dudegrows.com/cannabis-deficiencies/

I think all answers you need at in this article https://growace.com/blogs/learning-center/how-to-fix-nutrient-lockout

Hey, thanks for your replies, I don't have tools to mesure pH in the soil however last time I watered my run off water was at 7.6. I use tap water and the pH is a bit above 8. I'm from western europe. I'll give a try to the product you linked me but in the meantime I have BioGrow which is my nutrient containing the most N (NPK 436). Should I increase it a little?

older leaves dying off is normal but you look accelerated. You are sorely missing N here a massive dose is needed for sure. What is the ph of the soil ie the root ball? What is the ph of your soils water run off? what is the source and PH of your water and what region do you live? (helps to know water type) Without knowing the ph of things, I'd have to agree with hazetokenmisfit foliar spray with seaweed product like this one. https://www.canadiantire.ca/en/pdp/rubicon-liquid-seaweed-1-l-0592416p.html#srp

Get yourself some Fish Sh!t , itll help clear any buildups and give it a good compost tea castings molasses and bananas and she'll be ok [: